Transmitting Utility Usage Data via a Network Interface Device

ABSTRACT

Embodiments of the present invention provides devices, systems and methods that overcome certain deficiencies in the prior art. One exemplary embodiment of the invention comprises an integrated system for providing video and data services to a customer premises. The integrated system comprises a digital broadcast satellite receiver, a data source, and an integrated network interface device. The integrated network interface device can be coupled to the receiver and/or the data source, and the integrated network interface device can be configured to receive video information from the receiver and data (e.g. Internet Protocol data) from the data source. In accordance with certain embodiments, the integrated network interface device can further be configured to distribute the data to the customer premises via a first internal transport medium and/or distribute the video information to the customer premises via a second internal transport medium. In one aspect, network interference devices can be attached to an external wall of customer premises.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a continuation of co-pending U.S. patent applicationSer. No. 10/377,280, filed Feb. 27, 2003 by Phillips et al. and entitled“ADSL/DBS NETWORK INTERFACE DEVICE AND METHODS AND SYSTEMS FOR USING THESAME (the “'280 Application”). The '280 Application is acontinuation-in-part application of U.S. patent application Ser. No.10/356,364, entitled “PACKET NETWORK INTERFACE DEVICE AND SYSTEMS ANDMETHODS FOR ITS USE,” filed Jan. 31, 2003 by Bruce A. Phillips et al.(Attorney Docket No. 020366-087700US); is a continuation-in-partapplication of U.S. patent application Ser. No. 10/356,688, entitled“SYSTEMS, METHODS AND APPARATUS FOR PROVIDING A PLURALITY OFTELECOMMUNICATION SERVICES,” filed Jan. 31, 2003 by Bruce A. Phillips etal. (Attorney Docket No. 020366-090200US); is a continuation-in-partapplication of U.S. patent application Ser. No. 10/356,338, entitled“CONFIGURABLE NETWORK INTERFACE DEVICE AND SYSTEMS AND METHODS FOR ITSUSE,” filed Jan. 31, 2003 by Bruce A. Phillips et al. (Attorney DocketNo. 020366-090300US), is a continuation-in-part of U.S. patentapplication Ser. No. 10/367,596, entitled “SYSTEMS AND METHODS FORDELIVERING A DATA STREAM TO A VIDEO APPLIANCE,” filed Feb. 14, 2003 bySteven M. Casey et al. (Attorney Docket No. 020366-089100US), is acontinuation-in-part of U.S. patent application Ser. No. 10/367,597entitled “SYSTEMS AND METHODS FOR PROVIDING APPLICATION SERVICES,” filedFeb. 14, 2003 by Steven M. Casey et al., (Attorney Docket No.020366-089600US, the entire disclosure of each of which is hereinincorporated by reference for all purposes.

This application is also related to each of the following commonlyassigned, copending applications, the entire disclosures of each ofwhich is herein incorporated by reference for all purposes: Title:“SYSTEMS AND METHODS FOR MONITORING VISUAL INFORMATION,” U.S. patentapplication Ser. No. 10/377,283, (Attorney Docket No. 020366-088800US);Title: “SYSTEMS AND METHODS FOR FORMING PICTURE-IN-PICTURE SIGNALS.”U.S. patent application Ser. No. 10/377,290, (Attorney Docket No.020366-088900); Title: “SYSTEMS AND METHODS FOR PROVIDING AND DISPLAYINGPICTURE-IN-PICTURE SIGNALS,” U.S. patent application Ser. No.10/377,281, (Attorney Docket No. 020366-089200); Title: “SYSTEMS ANDMETHODS FOR DELIVERING PICTURE-IN-PICTURE SIGNALS AT DIVERSECOMPRESSIONS AND BANDWIDTHS,” U.S. patent application Ser. No.10/377,584, (Attorney Docket No. 020366-089900US); and Title: SYSTEMSAND METHODS FOR DISPLAYING DATA OVER VIDEO,” U.S. patent applicationSer. No. 10/377,282, (Attorney Docket No. 020366-089000US). Each of theaforementioned were filed on Feb. 27, 2003.

BACKGROUND OF THE INVENTION

The present invention relates to the provision of telecommunicationservices. In the past, there has been no consistent interface betweentelecommunication service providers' networks and their customers'premises wiring. For instance, telephone service often has beenhard-wired to the customer's premises wiring by a variety of methods,rendering service calls unnecessarily complicated and intrusive. Suchservice calls often required service personnel to enter the customerpremises, creating logistical issues for the telecommunication serviceprovider and increasing customer frustration. Moreover, the lack of anydiscrete interface between the customer's premises wiring and theprovider's network sometimes forced the use of proprietary hardware fromthe customer's perspective and limited the provider's flexibility whenconsidering options to upgrade or otherwise modify the network.

This problem has been exacerbated by the increased number oftelecommunication services provided to customer premises. For instance,many telecommunication service providers now provide xDSL service totheir customers, but those skilled in the art will recognize that thereis little (if any) standardization among providers. Thus,implementations vary widely, each requiring different hardware andsoftware configurations to be operable, and customers have littleflexibility in choosing hardware. For instance, ADSL service frequentlyis deployed differently than VDSL service, and ADSL deploymentsthemselves can vary from provider to provider. Likewise, telephonewiring schemes can vary widely among customer premises, requiringdifferent types of hardware to enable and enhance services, such asfilters to control interference, and the like. Further, a typicalcustomer premises has multiple wiring networks, including one for videodistribution (cable, satellite, VDSL, and the like), one for datadistribution (Ethernet or the like, perhaps with a connection to an xDSLmodem or cable modem), and another for telephone service, and thesenetworks generally operate independently of one another. And if acustomer wants to add a new telecommunication service, an expensiveservice call (often including one or more new cable drops and/or theinstallation of new premises wiring) likely will be required.

Similarly, while a single telecommunication customer often will receiveseveral telecommunication services from a variety of providers, each ofthose services generally will require both its own access point to thecustomer premises as well as its own transport medium within thecustomer premises. This undesireable duplication not only can addexpense to the provision of telecommunication service, it oftenmultiplies the logistic and maintenance issues associated with providingand receiving the telecommunication services.

For instance, those skilled in the art will recognize that a typicalcustomer might have satellite television service and xDSL Internetservice. Each of these services might require one or more access pointsto the house. A satellite dish might require, for example, a dedicatedcoaxial connection from the dish to each television at the consumerpremises. Moreover, a telephone jack often is required at one or more ofthe television locations, to provide an upstream connection from thecustomer premises to the satellite provider (for instance, to providebilling information, etc.) Likewise, xDSL service typically will requirea DSL modem, as well as an Ethernet connection with each device forwhich Internet access is desired. Thus, while neither satellite servicenor typical xDSL service alone can provide a robust data/video solutionto compete with broadband cable providers, there also is no facility forcombining these services seamlessly at a customer premises.

Given the wide variety of telecommunication information and servicesavailable in the marketplace, it would be helpful if a single providercould allow multiple information providers to initiate services to acustomer premises, increasing both efficiency for the providers andcase-of-use for the customer. This proliferation of telecommunicationservices also has created a need for a more flexible interface betweenthe telecommunication service provider's network and the customer'spremises.

BRIEF SUMMARY OF THE INVENTION

Embodiments of the present invention provides devices, systems andmethods that overcome certain deficiencies in the prior art. Oneexemplary embodiment of the invention comprises an integrated system forproviding video and data services to a customer premises. The integratedsystem comprises a digital broadcast satellite receiver, a data source,and an integrated network interface device. The integrated networkinterface device can be coupled to the receiver and/or the data source,and the integrated network interface device can be configured to receivevideo information from the receiver and/or data (e.g. Internet Protocoldata) from the data source. In accordance with certain embodiments, theintegrated network interface device can further be configured todistribute the data to the customer premises via a first internaltransport medium and/or distribute the video information to the customerpremises via a second internal transport medium. In one aspect, networkinterface devices can be attached to an exterior wall of customerpremises.

Various embodiments of the invention can include one or more off-airtelevision antennas in communication with the network interface device.In accordance with such embodiments, the network interface device can beconfigured to receive a first set of video information from the digitalbroadcast satellite receiver and a second set of video information fromthe off-air antenna. The network interface device can be configured todistribute the first and/or second sets of video information via thesecond internal transport medium. In some embodiments, one or more ofthe internal transport media can comprise a coaxial cable and/or atwisted pair cable. The twisted pair cable can be the existing telephonewiring at a customer premises and/or an Ethernet cable. In accordancewith other embodiments, the first internal transport medium and thesecond internal transport medium can be the same transport medium.Further, the data source can be a digital subscriber line.

In particular embodiments, the network interface device can beconfigured to receive video provision information from the customerpremises and transmit that video provision information (e.g., via thedata source) to a telecommunication service provider. The videoprovision information can comprise billing information and/or contentrequest information.

Other embodiments of the invention provide integrated network interfacedevices which can, for example, be used in the systems described above.One exemplary network interface device comprises four interfaces. Thefirst interface can be adapted to receive data from a data source, andthe data can comprise Internet Protocol data; the data source cancomprise a digital subscriber line. The second interface can be adaptedto receive video information from a video source, for instance a digitalbroadcast satellite receiver. The third interface, which can be incommunication with the first interface, can be adapted to transmit thedata to a first internal transport medium. And the fourth interface,which can be in communication with the second interface, can be adaptedto transmit the video information to a second internal transport medium.

Optionally, some network interface devices comprise a fifth interfaceadapted to receive video information from a second video source, such asan off-air antenna. The fifth interface can be in communication with asignal integrator, which also can be in communication with the first andfourth interfaces and, in same implementations, can be incorporatedwithin a processing system. The signal integrator can be configured tocombine video information received on the first and the fifth interfacesfor transmission on the fourth interface. In accordance with otherembodiments, a network interface device can include a signal strengthmeter. The signal strength meter can be in communication with the firstinterface and can be configured to provide information about a signalassociated with the video information received on a first interface. Insome cases, the signal strength meter comprises one or more lightlimiting diodes.

In accordance with certain embodiments, a network interface device canalso include a signal integrator in communication with the first andsecond interfaces. The signal integrator can be adapted to integrate thedata and the video information into a combined information set. In suchembodiments, the third and/or fourth interfaces can be adapted thetransmit the combined information set via a coaxial cable and/or atwisted pair cable. The signal integrator can be further adapted toformat the combined information set according to a consolidateddistribution protocol. Optionally, the third and fourth interfaces canbe the same interface.

In accordance with certain embodiments, a network interface device caninclude a translation device, which can be coupled to the first and/orsecond interface. In some cases, the translation device can incorporatethe functionality of a signal integrator and, in other cases, thetranslation device can be incorporated within a processing system. Inone aspect, the translation device can be coupled to the firstinterface, and the data can be encoded with a remote transmissionalgorithm. The translation device, then, can be configured to encodeand/or decode the remote transmission algorithm. In another aspect, thetranslation device can be configured to format the data according to aconsolidated distribution protocol. Alternatively, the translationdevice can be coupled to the second interface and the video informationcan be encoded with a remote transmission algorithm. Again, thetranslation device can be configured to encode and/or decode the remotetransmission algorithm. In some embodiments, the translation device canbe adapted to convert between a remote transmission protocol and aconsolidated distribution protocol.

In other embodiments, the translation device can be a first translationdevice, and the network interface device can further comprise a secondtranslation device coupled to the first interface. The secondtranslation device can be adapted to format data according to aconsolidated distribution protocol. In certain embodiments, the firstand second translation devices can be the same translation device.

Still other embodiments of the invention comprise methods of providingvideo and data services to a customer premises. One such methodcomprises providing an integrated network interface device capable ofreceiving video information and data, receiving at the integratedinterface device a set of video information from a digital broadcastsatellite receiver, and receiving at the network interface device a setof data from a data source. Optionally, the method can further compriseattaching the network interface device to an exterior wall of thecustomer premises. In other embodiments, the method can further comprisereceiving a second set of video information from an off-air antenna,combining the first and second sets of video information, and/ortransmitting one or more sets of video information and/or data from theintegrated network interface device to the customer premises.

In one aspect, transmitting the set(s) of video information and theset(s) of data can comprise transmitting the video information and thedata on a common internal transport medium. In accordance with otherembodiments, the method can further include receiving a set oftelecommunication information from customer premises and/or transmittinga set of telecommunication information via the data source. In somecases, the transmitted set and the received set can be the same set oftelecommunication information. The set of telecommunication informationcan comprise video provision information.

In a particular embodiment, the method can include formatting the videoinformation and/or the data according to a consolidated distributionprotocol. The video source can be, inter alia, a digital broadcastsatellite transmission and the data source can be, inter alia, a digitalsubscriber line. Such embodiments can employ any of the integratednetwork interface devices discussed herein, including, for example, anintegrated network interface device comprising four interfaces. Thefirst interface can be adapted to receive the set of data from the datasource, and the data can comprise Internet Protocol data. The secondinterface can be adapted to receive the set of video information fromthe digital broadcast satellite receiver. The third interface can be incommunication with the first interface and can be adapted to transmitthe set of data to a first internal transport medium. The fourthinterface can be in communication with the second interface and adaptedto transmit a set of video information to a second internal transportmedium. In some embodiments, the method can further comprisedistributing the set of data to the customer premises via the thirdinterface and/or distributing the set of video information to customerpremises via the fourth interface.

In certain embodiments, the integrated network interface device caninclude a signal integrator, and the method can further compriseintegrating the set of data and the set of video information into acombined information set. The combined information set can be formattedaccording to a consolidated distribution protocol and/or can betransmitted to the customer premises via the third and/or fourthinterfaces. Alternatively, the third and fourth interfaces can be thesame interface. In still other embodiments, the integrated networkinterface device can include a translation device coupled to at leastone of the first and/or second interface, and either the set of dataand/or the set video information can be encoded with a remotetransmission algorithm. The method can further include decoding theremote transmission algorithm.

BRIEF DESCRIPTION OF THE DRAWINGS

A further understanding of the nature and advantages of the presentinvention may be realized by reference to the figures, which aredescribed in the remaining portion of the specification. In the figures,like reference numerals are used throughout several figures to refer tosimilar components. In some instances, a reference numeral may have anassociated sub-label consisting of a capital letter to denote one ofmultiple similar components. When reference is made to a referencenumeral without specification of a sub-label, the reference is intendedto refer to all such multiple similar components.

FIGS. 1A-1G illustrate systems for using demarcation devices accordingto certain embodiments of the invention.

FIG. 2A illustrates a network interface device according to certainembodiments of the invention.

FIG. 2B is a cross-sectional drawing further illustrating the networkinterface device of FIG. 2A.

FIG. 3 is a schematic drawing illustrating a processing system that canbe included in a network interface device according to certainembodiments of the invention.

FIG. 4 illustrates a distributed network interface device according tocertain embodiments of the invention.

FIG. 5 illustrates a network interface device providing a variety oftelecommunication services to a customer premises according to certainembodiments of the invention.

FIG. 6 illustrates a method of providing telecommunication servicesusing a demarcation device, in accordance with certain embodiments ofthe invention.

FIG. 7 is a conceptual drawing of a network interface device that can becoupled to a fiber optic cable and used to provide telecommunicationservices, in accordance with certain embodiments of the invention.

FIG. 8 is a conceptual drawing of a network interface device that can becoupled to a coaxial cable and used to provide telecommunicationservices, in accordance with certain embodiments of the invention.

FIG. 9 is a conceptual drawing of a network interface device that can becoupled to a variety of different external transport media and used toprovide telecommunication services, in accordance with certainembodiments of the invention.

FIG. 10 is a conceptual drawing of a network interface device that canprovide video and data services to a customer premises, in accordancewith certain embodiments of the invention.

DETAILED DESCRIPTION OF THE INVENTION

Certain embodiments of the present invention are directed to demarcationdevices that can be used to provide telecommunication services, as wellas to methods and systems of using such devices. A demarcation devicecan be any device capable of serving as an interface between a customerpremises and a telecommunication service provider's network. Suchdevices can include, merely by way of example, set top boxes (which canbe used, inter alia, as an interface between a customer's videoappliance and a provider's video network), broadband modems (includingxDSL modems, cable modems and wireless modems, each of which can be usedto provide video and/or data to a customer premises), integrated accessdevices (which can, for instance, translate between Voice over IP(“VoIP”) signals and traditional telephone signals, thus allowingtraditional telephones to connect to a VoIP network), devices compatiblewith the session initiation protocol (“SIP”) familiar to those skilledin the art, and/or the like. One particular demarcation device is anetwork interface device (“NID”), described in detail below. In certainaspects, demarcation devices can be used to separate receivedtelecommunication information into discrete sets, and optionally toprocess certain of those sets independently from other sets and/ortransmit different sets to different locations, perhaps through the useof different interfaces.

As used herein, references to the the term “telecommunicationinformation” should be interpreted to include any information that canbe transmitted or carried by a telecommunication service provider'snetwork (e.g., the Public Switched Telephone Network or “PSTN”) or byany other telecommunication network, including but not limited to theInternet. Such information includes, for example, voice signals (e.g.,Plain Old Telephone Service or “POTS,” as the term is known to thoseskilled in the art), audio and video signals (encoded in any standardand/or proprietary, digital and/or analog format now known or hereafterdeveloped, using any of a variety of means known to those skilled in theart, such as HDTV, NTSC and PAL formatting, as well as, for example, anyof the MPEG digital encoding and/or compression algorithms), and data.Such data can be formatted according any of a variety of protocolsfamiliar in the art, including in particular any of the protocols knownin the art as part of the TCP/IP suite, in particular the InternetProtocol (“IP”). Data can also include infrastructural protocols,including, for instance, routing protocols and protocols necessary toimplement advanced networking schemes known to those skilled in the art,such as multiprotocol label switching (“MPLS”), Ethernet in the firstmile (“EFM”), to name but two

In this document, the term “telecommunication service provider” can meanany entity that provides telecommunication service to a customer'spremises, including, merely by way of example, incumbent local exchangecarriers, competitive local exchange carriers, cable televisioncarriers, and satellite providers, to name a few. In contrast, the term“telecommunication information provider,” means any entity that iscapable of serving as a source of telecommunication information. In manycases, a particular entity may be considered both a telecommunicationservice provider and a telecommunication information provider, forinstance, when a local exchange carrier provides Internet service to acustomer, as well as the external transport medium attached to thatcustomer's premises. In other cases, the two may be separate entities.For instance, according to certain embodiments of the invention, a cabletelevision provider could contract with a local exchange carrier toprovide broadcast television signals to a customer premises using thelocal exchange carrier's network and/or an external transport mediumoperated by the local exchange carrier.

The term “telecommunication information set” is used to describe adiscrete subset of the telecommunication information transmitted acrossa particular transport medium and/or received by a demarcation device.Generally, the telecommunication information that is classified part ofa particular information set shares a common characteristic. Merely byway of example, an information set can comprise telecommunicationinformation of a particular type (e.g., voice, IP data, encoded video,and such), information associated with a particular application (e.g.,information assigned to a specific IP port, as is known in the art, orinformation used by a particular software and/or hardware program),information addressed to or received from a particular device or networksegment, information received within a particular reception window, andthe like. Merely by way of example, a demarcation device might transmitsimultaneously a first information set comprising video signals, asecond information set comprising Internet data, and a third informationset comprising information associated with an online gaming application.

In certain embodiments, demarcation devices can support the one-way flowof telecommunication information, as for example, in the case of asimple set top box, which can receive data representing a video signal,decode that data, and transmit a video signal to an attached television.In other embodiments, however, demarcation devices can supportbidirectional flow of telecommunication information. For example, anxDSL modem allows the transmission of data both to and from a customerpremises. In still other embodiments, a demarcation device can beconfigured to support both unidirectional and bidirectional informationflows simultaneously, depending on the type of telecommunicationinformation transmitted or the source of the information.

In one important aspect, demarcation devices can function to isolate thetelecommunication service provider's network from the network at thecustomer premises. As described in detail below, the service provider'snetwork can be thought of as an “external transport medium,” while thecustomer's network can be termed an “internal transport medium.” Bothexternal transport media and internal transport media are types of“transport media,” a term used in this document to describe any cable,wire or other medium capable of carrying telecommunication information,including, but not limited to, twisted pair copper wiring (shielded orunshielded, including, for example, unshielded cables complying withindustry-standard categories 3, 5, 5e, 6 and 7 and shielded cablescommonly known as Token Ring™ cables, to name a few), optical fiber(including both single-mode and multimode fiber, as well as doped fiber,wavelength-division multiplexed, coarse wavelength-division multiplexed,wide wavelength-division multiplexed, dense wavelength-division andultra-dense wavelength-division multiplexed fiber) and coaxial cable.

Other examples of transport media can also include universal serial bus(“USB”) cable, cable complying with the Institute of Electrical andElectronics Engineers' (“IEEE”) 1394 standard, as well as any mediumcapable of complying with the many local area networking standards knownin the art. Of course, a transport medium need not be a physical medium;it can also comprise any of a wide variety of wireless transmissions,including (but not limited to) infra-red transmissions, radio frequency(“RF”) transmissions, and transmissions complying with standardsdeveloped by any of the IEEE's working groups governing wirelesscommunication (e.g., the 802.11, 802.15, 802.16 and 802.20 workinggroups). Similarly, a transport medium can comprise other wirelesstechnologies, such as point-to-point microwave, including localmultipoint distribution system (“LMDS”), microwave multipointdistribution system and/or multipoint multi-channel distribution system(collectively, “MMDS”) transmissions, and satellite, cellular/PCS,and/or ultra wideband transmissions, to name a few.

In certain embodiments, a demarcation device can act as an activedemarcation point, serving to isolate the external transport medium fromthe internal transport medium (perhaps via an isolation device,discussed below), such that operational changes in one network do notaffect the other network. “Operational changes” can include any changesin the structure, topology, format, protocol, bandwidth, media and/orother operational parameters of a network. This feature can provide manybenefits; for instance, the demarcation device can serve as a disclosedinterface between a customer premises and a provider's network, allowingthe provider to implement changes in its network without disrupting theservice provided to the customer.

Likewise, the isolation of the internal transport medium from theexternal transport medium can allow for any variety of customer premiseequipment (“CPE”) (which can be any device that sends, receives orotherwise utilizes telecommunication information) to be used at thecustomer premises without fear that the appliance might be incompatiblewith a particular telecommunication service provider's standards.Moreover, a demarcation device might serve to couple a plurality ofexternal and/or internal transport media, allowing interoperation amongthem all, and provide the same isolation features among all of thesemedia.

In this way, certain aspects of the demarcation devices can allow forsales of a wide variety of CPE on a consumer electronics model, insteadof the proprietary model necessitated by many of today'stelecommunication networks, where, for example, differingimplementations of xDSL among providers virtually force consumers topurchase modems supplied or approved by a particular provider to ensurecompatibility between the modem and the provider's xDSL implementation.By isolating the topologies of the external and internal transportmedia, embodiments of the present invention can create a disclosedinterface between the provider's network and the customer's network,allowing much greater flexibility in both the provider's networkingoptions and the customer's choice of telecommunication appliances. Thoseskilled in the art will recognize that these and many other benefits canflow from embodiments of the invention.

In accordance with other embodiments, the isolation abilities ofdemarcation devices also can allow a demarcation device to serve as aninsulator between different transport media coupled to the internal andexternal transport media in order, for instance to prevent unwantedtelecommunication information from one network from entering the othernetwork. For instance, a demarcation device in accordance withparticular embodiments can serve to prevent propagation of certaintelecommunication information from an internal network (includingparticular signals or frequencies) into one or more external transportmedia, preventing interference in the internal transport medium frominterfering with the telecommunication service provider's network. Insimilar fashion, demarcation devices can prevent the contamination ofthe internal transport medium with unwanted information from theexternal medium, interference between two or more external transportmedia coupled to a demarcation device, and unwanted interference orcrosstalk between multiple internal media.

The ability of a demarcation device to isolate the internal transportmedium from the external transport medium also allows demarcationdevices in some embodiments to be used to provide enhanced security forthe customer and/or control customer access to certain features orservices. For instance, those skilled in the art will recognize that ademarcation device can prevent unauthorized access (by atelecommunication service provider and/or a third party) to thecustomer's data network, or can screen or filter telecommunicationinformation entering or leaving the customer's premises, enablingfeatures like parental controls on incoming and outgoing information, aswell as the filtering of outgoing sensitive information (such as creditcard information and the like).

Further, according to certain embodiments, the demarcation device, asthe consolidation point for all telecommunication information enteringor leaving the customer premises, can provide a variety of enhancedfeatures to the entire premises, including things like calleridentification, premises-wide telephone, video and data distribution,content (e.g., video, audio or data) on demand, and the like. These andother features of the demarcation devices also allow for a variety ofnew and useful telecommunication applications to be provided tocustomers. Details about some exemplary applications are discussedbelow; given the disclosure herein, those skilled in the art canappreciate the wide variety of such applications that are possible usingvarious embodiments of the invention.

Those skilled in the art will recognize that, in certain cases, it maybe desirable to provide a particular levels of service to a customerpremises. Such quality of service (“QoS”) considerations can include,for instance, a guaranteed bandwidth to a certain application or device,such as in the case of streaming video and/or audio applications.Another consideration for some telecommunication applications can belatency rates; for example, a low latency rate may be desirable in orderto maintain the fidelity of voice communications. For these and otherreasons, demarcation devices, in accordance with certain embodiments ofthe invention, can be configured to identify, enforce and/or maintainQoS levels and/or requirements.

Merely by way of example, in certain cases, demarcation devices canprovide signal strength enhancement functions, which can vary accordingto the information transmitted and/or media used. For instance, anamplifier can be supplied in a demarcation device to enhance thestrength of analog signals. With respect to digital signals, aregenerator can be employed in a demarcation device to enhance signalstrength. Those skilled in the art will recognize that a wide variety ofsignal strength enhancement devices can be used in accordance withembodiments of the invention.

In other embodiments, demarcation devices can accommodate/providevarious service levels, which, in some cases, can correspond to variousservice classes in an asynchronous transfer mode network. For instance,a demarcation device can support undefined bit rate transmissions,available bit rate transmissions, variable bit rate (both real-time andnear real-time) transmissions, and constant bit rate transmissions, toname a few. Thus, for instance, a demarcation device can provideundefined bit rate transmission services to a data application,real-time variable bit rate transmission services for voiceapplications, and constant bit rate transmission services for videoapplications.

In some aspects, mediating the communications between one or moreexternal transport media and one or more internal transport media caninclude providing/enforcing these service levels, for instance,regulating a burst data transmission from a computer at the customerpremises so as not to impact the constant bit rate needed to providevideo service to a television at the customer premises. Those skilled inthe art will appreciate, based on the disclosure herein, that certaindemarcation devices can also support circuit emulation services (“CES”),allowing the provision of constant bit rate service classes over an ATMnetwork, among other things.

Other QoS functions can be supported by various embodiments ofdemarcation devices as well. For instance, in accordance with certainembodiments, a demarcation device (perhaps incorporating routerfunctionality) can implement the resource reservation protocol(including traffic engineering extensions), (“RSVP” and “RSVP-TE,”respectively) familiar to those skilled in the art, to allow fordedicated bandwidth paths, for instance, between a device at thecustomer premises and a telecommunication information provider. Otherembodiments can support a variety of internetworking technologies andprotocols, including, merely by way of example, virtual local areanetwork (“VLAN”) tags, pushing labeled switched paths (“LSP”), anddifferentiated services (“DIFFSERV”), which can be used, inter alia, toprovide necessary levels of service to support various applicationsand/or types of information sets.

Certain embodiments of the invention provide a variety of systems forutilizing demarcation devices. Merely by way of example, FIGS. 1A-1Gillustrate several such exemplary systems. For instance, FIG. 1Aillustrates a system 100 for providing telecommunication services usinga demarcation device, in accordance with some embodiments of theinvention. System 100 includes a distribution point 104 in communicationwith a demarcation device 108 via external transport medium 112. In onesense, distribution point 104 can be considered the source oftelecommunication information transmitted to customer premises and therecipient of telecommunication information transmitted from customerpremises 16, although, as described below, distribution point 104 oftenwill be neither the ultimate source nor the ultimate recipient oftelecommunication information. In certain embodiments, distributionpoint 104 can be a telecommunication service provider's local office; inother embodiments, distribution point 104 can be another network elementin the service provider's network, for instance, a remote terminationcabinet and/or a digital subscriber line access multiplier (“DSLAM”). Infact, distribution point 104 can be any facility or equipment operatedby a telecommunication service provider that is capable of transmittingtelecommunication information to, and/or receiving telecommunicationinformation from, a customer premises.

In general, distribution points can be classified, inter alia, asdiscrete distribution points or complex distribution points. Withrespect to a particular information set, a discrete distribution pointoften transmits only the necessary or desired information to the NID. Incontrast, a complex distribution point can transmit the entireinformation set to the NID. The contrast may be illustrated with regardto video distribution: A discrete distribution point may perform channelswitching (at the request of the demarcation device), encoding andsending only the desired channel information to the demarcation device.In contrast, a complex distribution point might rely upon thedemarcation device to perform all channel switching. Those skilled inthe art will appreciate that each scheme presents relative advantagesand disadvantages.

Distribution point 104 can be capable of transmitting and/or receivingany type of telecommunication information to/from demarcation device108, and such telecommunication information can be organized into aplurality of telecommunication information sets, as necessary. For easeof description, FIG. 1A does not show any additional sources orrecipients of telecommunication information in communication withdistribution point 104, but, those skilled in the art will recognizethat, in many embodiments, distribution point 104 can be coupled tomultiple customer premises (perhaps via a demarcation device at eachcustomer premises) and often is neither the ultimate source nor theultimate recipient of telecommunication information. Instead,distribution point 104 often can serve as the intermediary between oneor more customer premises (e.g., 116) and one or more largertelecommunication networks and/or telecommunication informationproviders, which, as discussed above, can include cable televisionnetworks, telephone networks, data networks, and the like. Further, manysuch networks (as well as, in some embodiments, distribution point 104)can be coupled to the Internet, so that distribution point 104 can serveas a gateway between customer premises and any source and/or recipientof telecommunication information that has a connection to the Internet.The interconnection of telecommunication networks is well known in theart and need not be discussed here, other than to note that distributionpoint 104 can be configured to transmit telecommunication information to(and receive telecommunication information from) virtually any source orrecipient of telecommunication information, through either direct orindirect (e.g., through the Internet) communication. Merely by way ofexample, a distribution point can transmit video signals received from atelevision programming provider to customer premises equipment, asdescribed in the applications referenced above. In other embodiments,distribution point 104 can be in communication with one or more othercustomer locations, allowing for private virtual circuits betweencustomer premises 116 and those locations.

In system 100, demarcation device 108 can serve as the interface betweenexternal transport medium 112 and customer premises 116. As conceptuallyillustrated in FIG. 1A, demarcation device 108 can be attached to anexternal wall of customer premises 116, which provides many advantages.For instance, if the telecommunication service provider desires toupgrade or otherwise change its network (including, perhaps, modifyingexternal transport medium 112), a technician can perform any necessary,changes at demarcation device 108 without entering the customerpremises. Coupled with the ability of some demarcation devices toisolate the telecommunication service provider's network from thecustomer's premises, this can allow the telecommunication serviceprovider to effect substantial changes in it network without impactingor inconveniencing the customer in any respect. This could, for example,allow the telecommunication service provider to upgrade externaltransmission medium 112 from a copper twisted pair to optical fiber,without requiring any topological changes inside the customer premises.Of course, demarcation device 108 also may be located at a variety ofother locations, for example, within customer premises 116 or at afacility operated by the telecommunication service provider (e.g.,distribution point 104). As discussed in detail below, a demarcationdevice may also be divided, with different portions situated atdifferent locations, according to the requirements of theimplementation.

Demarcation device 108 can communicate with CPE 120 (which can belocated inside customer premises 116) through internal transport medium124, which can comprise any of the media discussed above. In particular,internal transport medium 124 can comprise the existing telephone wiringin customer premises 116 and, in some embodiments, is capable ofcarrying voice, data and video information, as well, perhaps, as othertypes of telecommunication information, using any of a variety ofmultiplexing schemes. For instance, as described in Edward 11. Frank andJack Holloway, “Connecting the Home with a Phone Line Network Chip Set,”IEEE Micro (IEEE, March-April 2000), which is incorporated herein byreference, the Home Phoneline Networking Alliance (“HPNA”) standardsallow for simultaneous transmission of both voice information andEthernet frames across twisted-pair copper telephone wiring. The term“consolidated distribution protocol” refers to any transmission protocolor convention that can be used to transmit multiple disparateinformation types on a shared medium. HPNA can be considered one type ofconsolidated transmission protocol, as can the related HPNA+ protocol,as well as the HomePlug™ standard, discussed in detail below. Any timemultiple discrete information sets are transmitted on a shared/commontransport medium (or a shared/common set of transport media), thoseinformation sets can be termed, collectively, “combined informationsets.” Often, a combined information set will be formatted with aconsolidated distribution protocol, although those skilled in the artwill recognize that such formatting is not always necessary; differentinformation sets sometimes can share a common medium without needing tobe translated with a consolidated transmission protocol.

Thus, telecommunication information received by distribution point 104from any source (for instance, those discussed above) can be transmittedfrom distribution point 104 through external transport medium 112 todemarcation device 108. Demarcation device 108 can then transmit theinformation through internal transport medium 124 to CPE 120. Likewise,telecommunication information can be transmitted via the reverse path todistribution point 104, where it can, for instance, be transmitted to aninformation recipient, such as a service provider (for instance, torequest a pay-per-view movie or the like) or across the Internet to arecipient (such as in the case of an email message).

In certain embodiments, demarcation device 108 can receive configurationinformation, in some cases from a control point (e.g., 128), which, inthe illustrated embodiment, is associated with distribution point 104.In certain instances, control point 128 can be software and/or hardwareoperated by a telecommunication service provider for controlling certainfeatures of the operation of demarcation device 108. For instance,control point 128 can instruct demarcation device 108 to provide (orcease to provide) a particular telecommunication service (e.g., videodistribution) to customer premises 116, or to control how manyinformation sets and/or transport media demarcation device 108 shouldaccept at any given time. Control point 128 can also provide otherdirection to demarcation device 108, including, for instance,instructions to save or record a particular information set (e.g., datarepresenting a movie), such that the information set may quickly (and,in some cases), repeatedly be transmitted to customer premises 116,allowing the provision of voice, data, video, etc. on demand. Controlpoint 128 can further be used to test the availability, functioningand/or performance of demarcation device 108, and/or any of thetransport media attached thereto. Merely by way of example, controlpoint 128 can be used to perform a loop test, known to those skilled inthe art.

Often, it may be beneficial to allow the customer to provideconfiguration information to demarcation device 108. Thus, in certainembodiments, control point 128 can have a web interface, such that thecustomer (or any authorized person, such as an employee of thetelecommunication service provider or telecommunication informationprovider) may log on to the web interface and configure options fordemarcation device, perhaps resulting in configuration commands beingtransmitted from distribution point 104 to demarcation device 108. Inother embodiments, control point 128 can be a web interface todemarcation device 108 itself, allowing the customer (or, alternatively,a telecommunication service provider or telecommunication informationprovider) to configure demarcation device 108 directly. In still otherembodiments, control point 128 can communicate with demarcation devicethrough an application programming interface (“API”). Hence, in someaspects, control point 128 can interface with demarcation device 108through an API.

Those skilled in the art will recognize that, in some embodiments, anAPI can include a set of software, hardware or firmware routines orlibraries that may be invoked programmatically to configure or relayinformation to demarcation device 108. In that sense, then, controlpoint 128 can be understood to be a program running on a computer(perhaps located at distribution point 104 or customer premises 116,among other locations) that provides configuration information todemarcation device via using a software API. In other embodiments,however, an API can include a physical interface (perhaps adapted tocommunicate using any of the transport media discussed herein), that maybe accessed remotely and/or locally, for instance, by a servicetechnician.

Merely by way of example, a service technician could visit customerpremises 116, attach a laptop computer (or other configuration device)to demarcation device 108, and upload information to demarcation device108, including perhaps both configuration information and othertelecommunication information. In still other embodiments, demarcationdevice 108 can accept configuration information through other means,including merely by way of example, providing a web interface(especially in embodiments where demarcation device 108 is capable ofacting as a web server, as discussed below) and/or receiving aspecially-formatted electronic message, either of which could beconsidered a control point in such embodiments.

As described below, demarcation device 108 (and/or particular componentsthereof) can be addressable/and or programmable (e.g., through controlpoint 128). As such, demarcation device 108 can include a storagedevice, which can be any device known to those skilled in the art as onecapable of storing information (including, merely by way of example, anyof the memory and/or storage devices discussed below), for storingconfiguration information received from control point 128. As discussedbelow, the storage device can also store other telecommunicationinformation.

Configuration information can be any set of data or other informationthat can be interpreted by demarcation device 108 as operationalinstructions, including, but not limited to, commands to process certaininformation sets in certain ways (e.g., provide protocol conversion,allow transmission of the information set, deny transmission of theinformation set, direct transmission on a particular interface, and thelike), commands to provide (or cease providing) a particular service(e.g., to provide access to a pay per view movie or an additionaltelephone line). Thus, in certain aspects, a telecommunication serviceprovider can control the services provided to a customer in severalways. First, the provider can transmit a telecommunication informationset to a demarcation device only if the user of that device isauthorized to receive the service associated with that information set.Alternatively, the service provider could send one or more services to acustomer's demarcation device regardless of the customer's authorizationto use the services, and rely on the device itself to preventunauthorized access to those services.

Those skilled in the art will appreciate that certain control methodsare more well-suited to certain services than to others. For instance,with respect to cable television services, the same set of informationmay be broadcast to many households, and the demarcation device iswell-suited to control access to those services, allowing for greaterefficiency in the providing of such services. In contrast, video ondemand services may be controlled at a distribution point (orelsewhere), such that a demarcation device will only receive video ondemand information if the customer already has requested (and beenauthorized to receive) that service, and the demarcation device thus maynot need to provide access control functions with respect to thatservice.

According to some embodiments, demarcation device 108 can implementeither of these access control schemes, or both in combination, as wellas others. Moreover, demarcation device 108 can, in some cases, beconfigured to support a plurality of schemes transparently, so thecustomer can, for instance, request a service from demarcation device108 (perhaps using one of the methods discussed above), and demarcationdevice can relay that request to the appropriate telecommunicationservice provider (and/or telecommunication information provider) ifnecessary, as well as reconfigure itself to allow access to thatservice, if necessary. Of course, demarcation device 108 also can beconfigured to take any necessary validating or authenticating action(such as notifying distribution point 104 and/or control point 128 thatthe service has been requested, and, optionally, receiving a returnconfirmation that the service has been authorized).

In accordance with other embodiments, configuration information sent todemarcation device 108 can include one or more commands to interfacewith and/or control a particular home fixture in a certain way. The term“home fixture” should be interpreted to mean any outlet, fixture, ordevice (including without limitation those that function electricallyand/or any CPE) that can be intelligently controlled. Home fixtures caninclude, merely by way of example, any device, outlet, or otherequipment that can be included in the “smart home” or “connected home”concepts familiar to those skilled in the art. For instance,configuration information could instruct demarcation device 108 to turnon and/or off certain lights, electrical outlets and/or equipment(perhaps via additional devices), and/or to arm, disarm or otherwisemonitor and/or configure a home security system. One skilled in the art,will recognize, moreover, that although termed “home fixtures” for easeof description, home fixtures can easily be located in MDUs and businesspremises as well.

Configuration information can also include operational data such as anIP address, routing information, and the like, to name but a fewexamples. Configuration information can further include instructions tomodify one or more security settings of demarcation device 108. Merelyby way of example, in certain embodiments, demarcation device 108 caninclude a computer virus scanner, and configuration information caninclude updated virus definitions and/or heuristics. Likewise,demarcation device 108 often will be configured with access controls(for instance, to prevent unauthorized access through demarcation device108 by third parties, as described elsewhere in this document), andconfiguration information can include instructions on how to deal withparticular third party attempts to access demarcation device 108 orinternal transport medium 124. Those skilled in the art will recognizeas well that some security settings may specify the level of access thecustomer has to the functions of demarcation device 108, for instance toprevent unauthorized use of certain telecommunication services, and thatthese settings also may be modified by received configurationinformation.

Based on the disclosure herein, those skilled in the art will recognizethat a wide variety of configuration information can be transmitted todemarcation device 108, including those examples discussed above.Moreover, some types of configuration information may be sentperiodically to demarcation device 108 to ensure that the configurationof demarcation device is current. Those skilled in the art will alsorecognize that configuration information can, in a sense, be considereda subset of the broader category of telecommunication in formation.

Turning now to FIG. 1B, system 100′ is illustrative of certainembodiments, which can provide multiple demarcation devices 108A, 108Bat customer premises 116. As noted above, demarcation device 108A can bein communication with CPE 120A through internal transport medium 124A,and demarcation device 108B likewise can be in communication with CPE120B through internal transport medium 124B. Demarcation device 108B cancommunicate with distribution point 104 through external transportmedium 112B which, as illustrated by FIG. 1B, can simply be spliced intoexternal transport medium 112A (for example, using one or more activeand/or passive splitting devices, which could be optical, as in a fiberenvironment, for example, or electrical). If necessary, demarcationdevices 108 and/or distribution point 104 can include control logic toprevent unauthorized access by demarcation device 108A totelecommunication information sent to (or received from) demarcationdevice 108B, and vice-versa. In other embodiments, external transportmedium 112B could run directly from demarcation device 108B todistribution point 104, or external transport medium 112B can beomitted, and demarcation device 108B can be coupled to demarcationdevice 108A, which can provide connectivity between demarcation device108B and distribution point 104 through external transport medium 112A.

System 100′ can be used in a variety of implementations. For instance,if customer premises 116 is a multiple-dwelling unit (“MDU”) or acommercial building, separate demarcation devices can be provided foreach separate resident, family and/or tenant (or, alternatively, asingle demarcation device, perhaps with more interfaces, can servicemultiple dwelling or business units). In such implementations,especially when external transport medium 112B does not directly coupledemarcation device 108B to distribution point 104, demarcation devices108A, 108B can include security functionality, for example to preventtelecommunication signals intended for CPE 120A from reaching CPE 120Band vice-versa. In some embodiments, demarcation devices can provide avariety of such security, encryption and authentication functions.

As described above, in certain embodiments, multiple demarcation devices108A, 108B can be daisy-chained together (using any of thetelecommunication media discussed herein). This could allow atelecommunication service provider to provide service to additionalcustomers without requiring any additional external transport media(e.g., 112B). Similarly, demarcation devices at multiple premises can becoupled together (using wired or wireless transport media), such that ifthe external transport medium coupled to one of the demarcation devicesfails, that device can maintain connectivity to the distribution pointthrough its connection to another demarcation device. A demarcationdevice in accordance with specific embodiments thus may have aninterface for securely connecting to one or more additional demarcationdevices (thus, perhaps, forming a mesh network of one or moredemarcation devices and/or distribution points), that would allow aparticular demarcation device to serve as a conduit between anotherinterface device and a distribution point, without allowing anyunauthorized reception of telecommunication information intended for theconnected interface device. This secure interface can be included, forinstance, in a portion of the demarcation device that is inaccessible tocustomers, as illustrated in FIG. 2A and described below.

In other embodiments, a single customer premises might have connectionsto a plurality of telecommunication service providers. For example,turning now to FIG. 1C, system 100″ includes a distribution point 104Acoupled to demarcation device 108A and also includes a seconddistribution point 104B coupled to demarcation device 108B via externaltransport medium 112B. Merely by way of example, distribution point 104Bcould, for example, be associated with a cable television provider,while distribution point 104A could be associated with a telephonecompany. Thus, CPE 120A could be a telephone, and CPE 120B could be atelevision. (Of course, it should be noted that both telephone and videosignals, as well as other forms of telecommunication information, can beprovided through a single distribution point as well.) Further, asillustrated by example system 100″, multiple CPE 120A, 120C can becoupled to a single demarcation device 108 (either through two internaltransport media 124A, 124C as illustrated by FIG. 1C, or through acommon internal transport medium, as discussed below). As describedabove, each demarcation device 108A, 108B, can receive configurationinformation from a control point 128A, 128B respectively.

In an alternative embodiment, such as, for example system 100′″illustrated on FIG. 1D, a single demarcation device 108 can provideconnectivity to a plurality of distribution points (e.g., 104A, 104B),as well to a plurality of CPE 120A, 120B, 120C. In such an embodiment,demarcation device 108 could include attachments for multiple internaltransport media 124A, 124B, 124C and multiple external transport media112A, 112B. Moreover, as illustrated by FIG. 1D, each distribution point104A, 104B can be associated with a different control point 128A, 128B,respectively. In alternative embodiments, a single control point couldprovide configuration information to demarcation device 108 with respectto both distribution points 104A, 104B.

Turning now to FIG. 1E, another exemplary system 100″″ is presented inaccordance with certain embodiments of the invention. In exemplarysystem 100″″, demarcation device 108 can be in communication withdistribution point 104. In turn, distribution point 104 (perhapsoperated by a telecommunication service provider) can be incommunication with one or more telecommunication information providers130A, 130B. Each telecommunication information provider 130A, 130B canbe the source or recipient of one or more telecommunication informationsets (each of which can be associated with a particulartelecommunication service), each of which can be transmitted to (orreceived from) distribution point 104. Distribution point 104 can alsotransmit these information sets to (or received them from) demarcationdevice 108, via external transport medium 112. As discussed below,demarcation device 108 can be capable of processing a plurality of suchinformation sets in a variety of ways.

In certain embodiments, each telecommunication information provider130A, 130B can have an individual control point 128B, 128C. In some suchembodiments, control points 128B, 128C can be in communication withdemarcation device 108 via distribution point 104, or, alternatively,could have a separate means of communication with demarcation device 108(e.g., via a modem and telephone line). Thus, in some embodiments,demarcation device 108 can receive configuration information from eachcontrol point 128B, 128C. As discussed above, configuration informationcan direct the behavior of demarcation device 108, in particular withrespect to how to handle telecommunication information received from, orsent to, the associated telecommunication information provider.

In some embodiments, demarcation device 108 can be configured to acceptconfiguration information related only to the telecommunicationinformation and/or services provided by the telecommunicationinformation provider sending the configuration information. In this way,demarcation device can be protected against inadvertent (or malicious)misconfiguration, which could interrupt a telecommunication serviceprovided by another telecommunication information provider. Likewise,demarcation device 108 could be configured to automatically requestupdated configuration information from control point 108A associatedwith distribution point 104 in the case of misconfiguration, and controlpoint 108A could maintain a master set of configuration information tobe able to accommodate such a request.

In other embodiments, telecommunication information providers 130A, 130Bmay not have an associated control point. In such embodiments,telecommunication information providers 130A, 130B can sendconfiguration information to control point 128A (perhaps viadistribution point 104A), and control point 128A can relay thatconfiguration information to demarcation device 108 (again, perhapsthrough distribution point 104). In this way the telecommunicationservice provider can control which configuration information istransmitted to demarcation device 108.

In certain embodiments, demarcation device 108 can submit a request forconfiguration information to one or more control points 128A, 128B,128C, perhaps via distribution point 104. Such a request might be made,if, for instance, the customer would like to watch a pay per view movie.The appropriate control point (e.g., 128B) could then provide the properconfiguration information to demarcation device as described above, andthe configuration information could enable demarcation device totransmit the movie to customer premises 116.

As exemplified by system 132 on FIG. 1F, embodiments of the inventionenable a single demarcation device 108 to serve multiple CPE 134A-F,each of which can be a different appliance, at a single customerpremises 136. For instance, CPE 134A can be a computer with an Ethernetinterface, CPE 134B can be a telephone. CPE 134C can be a video gamesystem, CPE 134D can be a set-top box attached to a television, CPE 134Ecan be a computer with an HPNA interface, and CPE 134F can be a laptopcomputer equipped with a wireless network card.

Also as illustrated by system 132, demarcation device 108 can supportmultiple network topologies. For instance, demarcation device 132 canserve as a hub for a point-to-point network topology, with multiplepoint-to-point connections to CPE 134A, 134B via internal transportmedia 138A, 138B, respectively. In addition, demarcation device 132 cansupport a bus topology, as illustrated by internal transport medium 140,which can connect demarcation device 132 to CPE 134C, 134D, 134E.Demarcation device 108 can also be equipped with a wireless transmitter142 for communication with wireless-capable CPE 134F. In this way,demarcation device 108 can support a wide variety of networking media incustomer premises 136, including the existing telephone, satellite,cable, and network wiring. For instance, the existing telephone wiringin most homes is arranged in a bus topology, as is most coaxial cable(for instance RG6 or RG59) installed by cable television providers,although each may, in some implementations, be wired using a startopology. In contrast, many homes also have 10Base-T Ethernet networks,which sometimes require a central hub. As used herein, the term“10Base-T” can be understood to include newer implementations ofEthernet over unshielded twisted pair wiring, including, for instance,100 megabit Ethernet (100Base-T, 100VG-AnyLAN, etc.) and gigabitEthernet (1000Base-T) standards. Demarcation device 108 can supportthese and other network topologies, serving as the hub in a 10Base-Tnetwork if necessary.

FIG. 1G illustrates another exemplary system 150 for using a demarcationdevice 152 in an xDSL implementation, according to certain embodimentsof the invention. In some embodiments, distribution point 154 cancomprise a host digital terminal 156 coupled by transport medium 158 toDSLAM 160. (As noted above, however, in other embodiments, DSLAM 160 orother equipment can be considered the distribution point.) Host digitalterminal 156 can be coupled to any of a variety of data sources and/orrecipients, either directly, or indirectly (e.g., through the provider'snetwork and/or the Internet). In the illustrated embodiment, transportmedium can be a Synchronous Optical NETwork (“SONET”) link (e.g., OC-3,OC-12, etc.), although those skilled in the art will recognize thatother suitable transport media may be substituted.

In accordance with some embodiments, distribution point 154 alsocomprises a central office shelf 162 in communication with the PSTN, aswell with an asynchronous transfer mode (“ATM”) network 166, either ofwhich can provide connectivity to any of the variety of data sourcesand/or recipients discussed above. In certain embodiments, shelf 162 is,in turn, coupled to fiber distribution panel 168, which is connected bytransport medium 170 to a digital loop carrier remote terminationcabinet 172. Remote termination cabinet 172 can also be coupled to DSLAM160 by transport medium 174, which may be routed through serving areainterface 176. In effect, transport medium 174 can carry one or morePOTS information sets, and transport medium 158 can carry one or morenon-POTS (in this case xDSL) information sets.

As illustrated, these two information sets can be combined at DSLAM 160,which is in communication with serving area interface 176 throughtransport medium 178. Serving area interface 176 can coupled todemarcation device 152 by transport medium 180, and in the illustratedembodiment, demarcation device 152 is fixedly attached to an exteriorwall at customer premises 182. Demarcation device can then be coupledvia one or more internal transport media 184A-1 to a variety of CPE,including without limitation a television set 186, a video phone 188, anIP-compatible set-top box 190, an analog (POTS) telephone 192, anIP-compatible phone 194, and a personal computer 196. In this way, ademarcation device can be used to provide a plurality oftelecommunication services to a customer premises.

As alluded to above, a NID is one type of demarcation device that canserve as the interface between an external transport medium and aninternal transport medium. Generally, a NID can incorporate all of thefunctionality of the demarcation devices discussed above. In addition,in accordance with some embodiments, a network interface device also canoffer enhanced functionality in the provision of telecommunicationservices, as described below.

Turning now to FIG. 2A, one exemplary embodiment of a NID 200 isillustrated. In the illustrated embodiment. NID 200 comprises aclamshell design, with a lid portion 204 and a body portion 208connected by hinges 212A, 212B. Turning now to FIG. 2B, it can be seenthat body portion comprises a network area 216 and a customer area 220.Generally, network area 216 is adapted to receive a cover and isdesigned generally to be accessible only to personnel authorized by thetelecommunication service provider. In contrast, when NID 200 is open,the customer can access customer area 220 to add or remove components asdesired. In this and other ways, NID serves to isolate thetelecommunication service provider's network from the customer'snetwork, as described above. As discussed below, lid portion 204 cancontain a processing system (not shown in FIG. 2B)

Returning to FIG. 2A, NID 200 can include a first interface 228 forcommunicating with the provider's external transport medium. Thoseskilled in the art will recognize that, in some embodiments, asdescribed above, the external transport medium can be the twisted-paircopper “local loop” running from the customer's premises to thetelecommunication service provider's local office, and interface 228 canallow for the attachment of the local loop to NID 200. As discussedabove, in other embodiments, the external transport medium can be any ofa variety of other media, including satellite transmissions, wirelesstransmissions, coaxial cable. In fact, in certain embodiments, theexternal transport medium can comprise multiple transport media (of thesame or different types), for which NID 200 could include multipleinterfaces. In some such embodiments, NID 200 can function to logicallycouple or bond a plurality of external transport media to one another,seamlessly increasing the bandwidth available to the customer premises.For instance, a customer premises might have a satellite link to onetelecommunication service provider and an ADSL link to another provider,and NID 200 could combine or multiplex these two links to provide anapparent single, higher-bandwidth to the customer premises. Similarly,those skilled in the art will recognize that, in certain of theseembodiments, a particular external transport medium (for instance, asatellite link) may be more well-suited to one way transmission oftelecommunication information: in such cases, NID 200 could use a secondexternal transport medium (for instance, an ADSL link) to allowtransmission in the other direction.

Interface 228 can be coupled to a discrimination device 232, which canbe operative to separate information sets received on interface 228(and, conversely, aggregate information sets for transmission oninterface 228). Merely by way of example, in particular embodiments,discrimination device 232 can separate POTS information from othertelecommunication information and/or isolate signals on the internaltransport medium from the external transport medium (and vice-versa). Insome embodiments, for instance xDSL implementations, discriminationdevice 232 can comprise one or more filters. Such filters can include(but are not limited to) high-pass, low-pass and/or band pass filters.For instance, in an xDSL implementation, discrimination device 232 mightinclude a high-pass and/or low-pass filter for separating high-frequency(e.g., data) from low frequency (e.g., POTS) information. In otherembodiments, discrimination device 232 can comprise many other types offilters, including both digital and analog filters. Demarcation device232 can be operable to separate information sets through a variety ofcriteria, including for example, by frequency, by destination device,information type, frequency. Further, in certain embodiments,information sets can be multiplexed (for instance, using varioustime-division multiplexing or wave-division multiplexing schemes knownin the art) for transmission over an external transport medium, anddiscrimination device 232 can comprise a de-multiplexer capable ofseparating multiplexed signals and, optionally, routing each signal tothe appropriate destination.

In the illustrated embodiment, discrimination device 232 is incommunication with a second interface 236, which can interface with thetelephone wires at the customer premises to provide traditional analogtelephone service. In some embodiments, an aggregator 240 can besituated between discrimination device 232 and interface 236 to allowadditional (perhaps non-POTS) information sets to be sent and receivedthrough interface 236 simultaneously with the POTS information. This caninclude, for example, aggregating information sets for transmission ofan HPNA (or HPNA+) signal over an internal transport medium.

The discrimination device can also be coupled to a processing system244, which in the illustrated embodiment is located in the lid portion204, and all non-POTS information sets can be routed to processingsystem 244 for additional processing. Processing system 244 is describedin detail below, but can, in general, comprise one or microprocessors,including digital signal processor (“DSP”) chips, and/or memory devices,including both volatile and nonvolatile memories, as well as a varietyof read-only memory devices known in the art, such as programmable readonly memory (“PROM”) devices and erasable programmable read only memory(“EPROM”) devices (a term which should be interpreted to includeelectrically erasable programmable (“EEPROM”) devices, in addition toother EPROM devices) and storage devices (including hard disk drives,optical drives and other media) In fact, processing system 244 cancomprise the equivalent of one or more personal computers, running anyof a variety of operating systems, including variants of Microsoft'sWindows™ operating system, as well as various flavors of the UNIX™operating system, including open source implementations such as theseveral Linux™ and OpenBSD™ operating systems.

Telecommunication information (or information sets) can be processed byprocessing system 244 in a variety of ways, including, for example,routing a given information set to a particular interface, transforminginformation (for example, encoding/decoding information and convertingbetween different transport protocols), storing information, filteringinformation, and any of the other functions described herein withrespect to processing systems. In certain embodiments, processing system244 can serve as the termination point for an external transport medium;for instance processing system 244 can incorporate the functionality ofan xDSL modem. In other embodiments, processing system 244 can serve toidentify quality of service requirements (including, for instance, thosediscussed above), such as latency requirements for voice transmissionsand bandwidth requirements for streaming media transmissions, to name afew, and enforce those requirements, ensuring that sufficient bandwidthis provided to a particular device, network segment or application tomaintain the quality of service required.

In certain embodiments, for instance, as described above with respect toFIG. 1D, a NID may comprise another interface in communication with asecond distribution point 104B, perhaps operated by a differenttelecommunication service provider, through an additional externaltransport medium 112A. In such a case, the additional external interfacecould be coupled to discrimination device 232, or it could be coupled toanother discrimination device, which could also be in communication withprocessing system 244, interface 236 and/or aggregator 240. Thus,certain embodiments allow a single NID to serve as a communicationgateway between the customer premises and multiple telecommunicationservice providers, including combining or multiplexing multiple externaltransport media (each of which may be in communication with a differenttelecommunication service provider and/or telecommunication informationprovider) as discussed above.

Returning to FIG. 2A, processing system 244 can be in communication withaggregator 240, which, as discussed above, can aggregate non-POTSinformation sets received from processing system 244 and POTSinformation sets received directly from discrimination device 232 forconsolidated transmission via interface 236, among other functions. Ineffect, discrimination device 232 and aggregator 240 (perhaps inconjunction with processing system 244) can function to separatetelecommunication information received on interface 228 into a set ofPOTS telecommunication information and a set of non-POTStelecommunication (wherein POTS information can be understood to beordinary telephone signals, and non-POTS information can be understoodto include all other telecommunication information), route the non-POTSinformation via transport medium 248 to processing system 244 forprocessing, and route the POTS information to interface 236 fortransmission to the internal transport medium. In certain embodiments,one or more sets of non-POTS information can be routed to interface 236using transport medium 252 for transmission through interface 236,perhaps in combination with one or more sets of POTS information.

Of course, discrimination device 232 and aggregator 240 can perform thesame function in reverse (i.e., to separate and recombine different setsof telecommunication information received on interface 236 from thecustomer's premises). Thus, in some embodiments, both discriminationdevice 232 and aggregator 240 each can perform a combined discriminationdevice-aggregator function, depending on the direction of informationflow. In fact, while termed “discrimination device” and “aggregator” forease of description, those two devices can actually be identical, andfurther, their functionality can, in some embodiments, be incorporatedinto a single device, which could be coupled to interface 228, interface236, and processing system 244 and could route information sets amongany of those components as necessary. Moreover, as described below, thefunctionality of discrimination device 232 and/or aggregator 240 can beincorporated into processing system 244; likewise, discrimination device232 can incorporate interface 228 and/or aggregator 240 can incorporateinterface 236, such that discrimination device/and or aggregatorcomprise the necessary components to be coupled directly to the externaland internal transport media, respectively.

Discrimination device 232 and/or aggregator can also serve anotherfunction in certain embodiments: Since the external transport medium iscoupled to first interface 228 and the internal transport medium can becoupled to, inter alia, second interface 236, the discrimination deviceand/or aggregator can serve as an isolation device for intermediatingbetween the two media, such that when a topological change occurs in oneof the media, only the NID interface need be changed, and the othertransport medium is not affected. In some such embodiments,discrimination device 232 and/or aggregator 240 can serve tointermediate (including protocol translation and the like) betweeninterfaces 232, 240, allowing either the internal or the externaltransport medium to be upgraded or changed without impacting the othertransport medium. Of course, in certain embodiments, this isolationfunction also could be performed by processing system. In yet otherembodiments, the isolation device might comprise a separate piece ofhardware in communication with discrimination device 232, aggregator 240and/or processing system 244.

In certain embodiments. NID 200 can have one or more additionalinterfaces 256, 260 in communication with processing system 244 viatransport media 264, 268, respectively. Additional interfaces 256, 260can be adapted to communicate with any of a variety of internaltransport media to send/receive telecommunication information to/fromthe customer premises. For instance, interface 256 can be a coaxialinterface for connection to RG6 and/or RG59 cable, and interface 260 canbe an RJ45 and/or RJ11 interface for connection to unshielded twistedpair cable (which can, for instance, form a 10Base-T Ethernet network).

In certain embodiments, NID 200 can comprise a line driver (not shown onFIG. 2A), coupled to processing system 244 and aggregator 240. The linedriver can function to allow conversion between various network formatsand media, allowing a variety of different media types (e.g., twistedpair and/or coaxial cable, in accordance with the HPNA and HPNA+standards, as well, perhaps, as the customer premises' A/C wiring, inaccordance, for example, with the HomePlug™ standard) to transportcombined POTS and non-POTS information sets. If necessary, one or moredifferent line drivers can be used to accommodate a variety of transportmedia.

The ability of NID 200 to support multiple interfaces of different typesallows great flexibility in routing telecommunication informationthroughout the customer premises. Merely by way of example, if interface228 receives telecommunication information that includesdigitally-encoded video signals (e.g., MPEG-2 data), the information setthat includes the encoded video signals can be routed by discriminationdevice 232 to processing system 244, which can decode the signals intoan RF-modulated NTSC, HFDTV and/or PAL format and transmit the signalsvia transport medium 264 to coaxial interface 256, where it can betransmitted via coaxial cable to one or more televisions at the customerpremises. Alternatively, if the customer has a digital set-top boxlocated at the television, the encoded signals can be routed byprocessing system 244 (perhaps through the appropriate line driver) toaggregator 240, where the signals can be transferred through interface236 to the set-top box for decoding.

Similarly, in some embodiments, NID 200 might receive IP data (perhapscombined with other types of telecommunication information) on interface228. The information set comprising the IP data can be routed bydiscrimination device 232 via medium 248 to processing system 244, whereit can be processed, and depending on the embodiment, routed viatransport medium 252 to the customer's existing telephone wiring(perhaps using interface 236, optionally in conjunction with aggregator240 and/or one or more line drivers), routed to a 10Base-T network(perhaps transport medium 268 and interface 260), routed to a coaxialcable (e.g., using transport medium 264 and interface 256), or routedvia a wireless interface (not shown in FIG. 2A). Alternatively, the IPdata can be routed to any combination of these interfaces, and any ofthese interfaces could also receive IP or other telecommunicationinformation from a CPE at the customer premises, for routing toprocessing system 244. In this way, NID 200 can allow virtuallyunlimited connectivity options for each CPE at the customer premises.Adding to the flexibility of NID 200, processing system 244 can includethe necessary components to serve, for instance, as a cable, wireless,or xDSL modem, as well as components necessary to serve as an Ethernethub, switch, router or gateway, the functions of each of which arefamiliar to those skilled in the art.

In certain embodiments, NID 200 can comprise a power supply 272 forproviding electrical power to the components in NID 200. Power supply272 can be powered through electrical current carried on one or moretransport media and received on any of interfaces 228, 236, 256, 260.For example, those skilled in the art will recognize that a copper localloop could, in certain embodiments, transmit sufficient current to powerNID 200 though interface 228. Further, a second local loop could becoupled to NID 200, perhaps through an additional interface, to provideadditional current, if needed. Alternatively, power supply 272 couldreceive electrical current from a coaxial interface (e.g., 256), througha dedicated transformer plugged into an A/C outlet at customer premises,e.g., through D/C connection 276 (which can be 12V, for example, but canalso provide any other amperage and/or voltage required by NID 200). Inother embodiments, 12V connection 276 could be coupled to a CPE deviceand/or home fixture, which could provide power to the NID. Those skilledin the art will recognize as well that NID 200 could be coupled directlyto an A/C power source (at any standard voltage). Processing system 244can be powered by a connection 280 to power supply 272, someembodiments, processing system 244 might have its own power supply,which could include any of these powering options as well.

As mentioned above, processing system 244 can comprise a plurality ofprocessing devices, and each processing device can comprise multiplecomponents, including microprocessors, memory devices, storage devicesand the like. Merely by way of example, FIG. 3 provides a detailedillustration of exemplary processing system 244, which comprisesmultiple processing devices 304, 308, 312. In accordance with theexemplified embodiment, transport medium 248 links processing system 244with an external transport medium (perhaps via a discrimination deviceand/or interface, as described above).

Transport medium 248 can be coupled to microserver 304, such that anyinformation received by processing system 244 via transport medium 248is first processed by microserver 304. Microserver can, in someembodiments, be the equivalent of a server computer, complete withmemory devices, storage devices, and the like, each of which is known inthe art and none of which is illustrated on FIG. 3. In certainembodiments, microserver 304 serves as the controller for the NID,overseeing the NID's configuration and monitoring performance; in somesuch embodiments, the controller functions can be accessed using a webbrowser. Depending on the embodiment, microserver 304 can be capable ofperforming a wide variety of additional functions, including functionsrelated to administering any local area network comprised by theinternal transport medium. For instance, microserver 304 can function asan xDSL modem in certain embodiments, allowing a home network attachedto the NID to transmit and receive data via an xDSL connection to atelecommunication service provider. Microserver 304 can, in some cases,also function as a hub, bridge, switch or router.

Further examples of functions of microserver 304 in various embodimentsinclude a dynamic host configuration protocol (“DHCP”) server, which, asthose skilled in the art will appreciate, allows for flexibleconfiguration of an IP network using any internal transport mediumattached to the NID, and a network address translation (“NAT”) server,which provides some security against unauthorized use of the customer'snetwork. Microserver 304 can also function as a HyperText TransportProtocol (“HTTP”) server, which, among other benefits, can allowconfiguration of the NID through a convenient web interface, as well asa bridge, switch or router, which can be capable of supporting advancedrouting techniques, such as MPLS and EFM, to name a few. Microscrver 304can function further to manage quality of service requirements, asdescribed above.

In addition to these functions, microserver 304 can be configured toroute information sets received via transport medium 248, according tothe type of telecommunication information in the set (e.g., encodedvideo, IP data, etc.) as well as any addressing information associatedwith either the set or the information it comprises (e.g., a specifieddestination port or network address for a particular subset oftelecommunication information). In this way, microserver 304 can serve aswitching function somewhat similar to that described with respect todiscrimination device 232 described in relation to FIG. 2A. Forinstance, if IP data is received by microserver 304, such data can berouted to an Ethernet connection, to the existing telephone wiring(e.g., in an HPNA implementation), or to any other appropriate medium(perhaps via an appropriate line driver). In fact, in certainembodiments, processing system 244 (and in particular microserver 304)can incorporate the functionality of discrimination device 232 and/oraggregator 240, rendering those components optional.

In addition to microserver 304, processing system 244 can include othercomponents, including, for instance, application server 308 and set-topbox 312, which, in the illustrated embodiment, are coupled tomicroserver 304. Application server 308 can comprise the equivalent of acomputer, as described above, and thus can comprise one or more storagedevices, such as hard disk drive 320, as well as memory devices,microprocessors and the like, to enable it to store and processtelecommunication information and other data. In certain embodiments,application server 308 can perform tasks with processing, memory and/orstorage requirements that render microserver 304 unsuitable, including awide variety of consumer applications. For instance, application server308 can act as a digital recorder for storing video (perhaps as avideo-on-demand server or a personal video recorder), a file and/orapplication server for a home network attached to the NID, a Voice overIP (“VoIP”) server, caller identification server, or voice gateway for atelephone system attached to the NID. Application server 308 can alsofunction as a home security server, allowing the control of variousfeatures and configuration options for a home security system.

Set-top box 312, which, in some embodiments, can be coupled tomicroserver 304 as illustrated on FIG. 3, can provide traditionalset-top box functionality (e.g., decoding of television signals,frequency switching, etc.), as well as provide enhanced features,including, for example, the provision of picture-in-picture signals fornon picture-in-picture televisions, the provision of video on demand,personal video recorder features, and many other such features.

Processing system 244 can have multiple means of input and output.Merely by way of example, microserver 304 can communicate with one ormore external transport media (perhaps, as discussed above, viaintermediary devices) using one or more transport media (e.g., 248).Processing system 244 (and, specifically, microserver 304) also cancommunicate with one or more internal transport media (for examplecategory 5, 5e and/or 6 unshielded twisted pair wire 268, RG6 and/orRG59 coaxial cable 264, and category 3 unshielded twisted pair copper(telephone) wire 252), again possibly via intermediary devices, asdiscussed with reference to FIG. 2A. Notably, some embodiments ofprocessing system 244 can include interfaces for multiple transportmedia of a particular type, for instance, if processing system (and, inparticular, microserver 304) serves as a networking hub, switch orrouter. Processing system 244 can also have infra-red andradio-frequency receivers and/or transmitters, for instance to allow useof a remote control device, as well as wireless transceivers, forinstance to allow wireless (e.g., IEEE 802.11) networking.

As illustrated on FIG. 3, in some embodiments, microserver 304 managesthe connections between application server 308, set-top box 312 andtransport media 248, 252, 264, 268, routing data as necessary. In otherembodiments, each processor 304, 308, 312 can have independentconnections to one or more transport media.

It should be recognized that the devices within processing system 244are described for illustrative purposes only. The functionalitydescribed above with respect to microserver 304, application server 308and set-top box 312, respectively, each could be incorporated into asingle device within processing system 244. Alternatively, theirfunctions described herein could be divided among any number ofprocessors and devices within processing system 244. Thus, the divisionof functions among devices within processing system 244 is discretionaryand should not be considered to limit the scope of the invention.

In accordance with some embodiments, the NID might comprise multipleenclosures, each located in a different location and in communicationwith one another. Merely by way of example, FIG. 4 illustrates analternative embodiment of the invention, including a NID 400 and aseparate processing system 404. In the illustrated embodiment, NID 400can include the features described above, except that processing system404 can be located distal to NID 400. In this way, processing system 404can be located in a more secure area (for instance, inside the customerpremises), while NID 400 can be located conveniently at the exterior ofthe customer premises, where it can be accessed easily by servicepersonnel. (Of course, it should be noted that a NID can also behardened, so that it can be securely located in its entirety on theexterior of the customer premises, as, for instance, in the embodimentsdiscussed above.) In some embodiments, processing system 404 can be incommunication with NID 400 via similar transport media 412, 416, 420,424 to those discussed with respect to FIG. 3 (248, 252, 264, 268,respectively) and can include all of the same functionality of theembodiments discussed above. As illustrated in FIG. 4, processing system404 generally will draw power from its own source 428, although it couldalso be powered by NID 400, either via one of the transport media 412,416, 420, 424 or through a separate power connection 432.

FIG. 5 illustrates an exemplary system 500 in which a NID 504 inaccordance with certain embodiments of the invention is interconnectedvia several internal transport media to a wide variety of CPE, providingmany different telecommunication services. NID 504 can be incommunication with a telecommunication service provider's network viaexternal transport medium 506, which can be any of the media describedabove; in this exemplary embodiment, it is a twisted pair copper “localloop,” capable of carrying one or more POTS data sets and one or morexDSL information sets. NID 504 can have a processing system 508 incommunication with discrimination device 512, which can be a combinedhigh pass/low pass filter. As mentioned above, discrimination device 512can function to separate POTS information sets from non-POTS informationsets, with the former routed to aggregator 516, which can serve as aninterface to a category 3 twisted pair internal transport medium 520.Processing system 508 can also be in communication with aggregator 516,so that non-POTS information sets may be transmitted using transportmedium 520 as well.

Attached to internal transport medium 520 (which, in the illustratedembodiment can support the HPNA standard) can be a normal POTS telephone524, along with an integrated access device, which, among other things,can provide POTS service via IP data transmitted via the HPNA network oninternal transport medium 520. In the illustrated embodiment, threeadditional POTS telephones 532A, 532B, 532C are coupled to theintegrated access device, although those skilled in the art willappreciate that certain embodiments will support different numbers andtypes of devices attached to the integrated access device. Also attachedto transport medium 520 is a VoIP telephone 536, as well as a personalcomputer 540, which can use system 500 to access the Internet, amongother things.

Further embodiments can include an IP-compatible utility meter 544,which can allow a utility provider such as a city water department orelectrical utility to monitor and bill utility usage over the Internetor the telecommunication service provider's network, and/or anIP-compatible home security system 548, which can allow the customer tomonitor and control home security functions remotely. Via an Internetconnection to NID 504, a customer on vacation could administer homesecurity system 548, view images from security cameras, check the statusof any/all sensors, and even turn various lights in the house on andoff.

Internal transport medium 520 can also be coupled to an IP-compatibleset-top box 552, which may have a television 556 attached. In addition,certain embodiments allow for a video phone 560 to be included in system500 and attached to medium 520. Processing system 504 can also support adigital-to-analog converter 564 (perhaps with a ring generator), toallow direct connection of a POTS phone 568 to the NID, perhaps fortesting purposes or for mandated life-line service.

As mentioned above. NID 504 can support a variety of other interfacesand attachments as well. For example, in certain embodiments, NID 504(and more precisely processing system 508) can comprise one or morefiber optic interfaces, including for example, IEEE 1394 interface 572,as well a variety of standard Ethernet connections, including forinstance a category 5 10Base-T interface 576 that can be used, forexample, to attach one or more personal computers (e.g., 580) to NID504, as well as a wireless interface 578. Processing system 508 can alsoinclude a coaxial (RG6 and/or RG59) interface, either through use of abalun 588 (to convert, for example, from twisted pair to coaxial cable)or through a direct coaxial connection to processing system 508.

Like the other interfaces, coaxial interface 584 can support a widevariety of CPE and associated services, including transmission of both avideo (e.g., HDTV, NTSC or PAL) information set and a data (e.g., IPdata) information set, simultaneously. Supported devices can include anIP residential gateway, which can provide IP to HDTV/NTSC/PAL conversionfor video display on a television 598, as well as direct IPconnectivity, for example, to provide Internet access to a personalcomputer 602.

Through coaxial interface 584, NID 504 can also communicate with anIP-compatible set-top box, as well as directly with a cable-readytelevision 610, a personal computer 614 (either via a coaxial connectionon the computer or through a balun), a POTS telephone 618 (for instance,through an integrated access device 622), or to any other IP-compatibledevice 626, such as a utility meter, home security system or the like.As discussed above, NID 504 can be programmable and/or addressable, andin some embodiments, NID 504 can include an application programminginterface 630 to facilitate in the programming and/or addressing of NID504.

Notably, different embodiments of the NID can provide several benefits,including simultaneous video, data and voice transmission, whileoptionally maintaining required QoS levels for each particularinformation set, as discussed above. Further, some embodiments of theNID can comprise a router that is capable of multi-protocol labelswitching (“MPLS”), which, those skilled in the art will recognize,allows the telecommunication service provider tremendous flexibility indesigning the architecture of the external transport medium, includingoptions, such as EFM and tag switching schemes (e.g., MPLS), thatprovide enhanced features and performance across the provider's network.Various embodiments of the NID also allow for a plurality of virtualprivate networks to be established through the NID, allowing one or moresecure data connections from the customer premises to other locations.

Other embodiments of the present invention provide methods for usingdemarcation devices, and NIDs in particular. One exemplary method 700 inaccordance with certain embodiments is illustrated on FIG. 6. It shouldbe noted that the blocks displayed on FIG. 6 are arranged for ease ofdescription only, and their order and arrangement should not beconsidered to limit the scope of the invention: hence, some of functionsillustrated on FIG. 6 may be performed in an order different than thatillustrated, or they may be omitted entirely.

In block 704, an external transport medium is provided. A wide varietyof external transport media, including any of those discussed above, maybe used without varying from the scope of this embodiment. At block 708,a demarcation device is provided. In a particular embodiment, thedemarcation device can be a NID, as described above. In someembodiments, the demarcation device can be attached to an external wallof the customer premises (block 712), while in other embodiments, thedemarcation device can be located elsewhere, including various locationsat the customer premises (such as proximate to a particular CPE orcoupled to an internal transport medium in an attic, garage, basement,crawl space or the like. In still other embodiments, the demarcationdevice could be co-located with a portion of the external transportmedium, for instance in a digital loop carrier remote terminationcloset, at a DSLAM, or even at the distribution point.

In certain embodiments, a distribution point can receivetelecommunication information from a telecommunication informationprovider or other source of telecommunication information (block 716).As discussed above, the telecommunication information can comprise aplurality of sets of telecommunication information, and eachtelecommunication information set can be associated with a particulartelecommunication service. In many embodiments, the distribution pointcan receive the plurality of telecommunication information sets from aplurality of telecommunication information providers.

At block 720, the telecommunication information can be transmitted tothe demarcation device through the external transport medium. Generally,the telecommunication information can be transmitted from thedistribution point, although, as discussed above, the distribution pointneed be neither the ultimate source nor the ultimate destination of thetelecommunication information. At block 724, the distribution point (orother facility) can receive a request, either for configurationinformation as discussed above, or for a particular telecommunicationinformation set, and, in certain embodiments, the distribution point canforward that request to the appropriate telecommunication informationprovider (block 728). At block 732, the distribution point can receiveinformation (e.g., telecommunication information, perhaps includingconfiguration information) from the telecommunication informationprovider that is responsive to the request, and at block 736, thatresponsive information can be transmitted to the demarcation device,whether generated by the distribution point (and/or an associatedcontrol point) or the telecommunication information provider. In certainembodiments, different information sets can be received on differentinterfaces. Merely by way of example, a video information set could bereceived from a video source on one interface, while a data informationset could be received from a data source on another interface.Alternatively, a plurality of information sets can be sent and/orreceived on a single interface.

At block 740, the demarcation device optionally can separate anytelecommunication information received from the distribution point(whether or not sent in response to a request from the demarcationdevice) into discrete information sets, according to, inter alia, any ofthe criteria discussed above. Once the information sets have beenseparated, the demarcation device can take the appropriate action foreach. Such actions can include processing the information set (perhapswith a processing system similar to that described above), transmittingthe information set to a particular internal transport medium (see block748 below), consolidating the information with one or more otherinformation sets for combined transmission onto an internal transportmedium, storing the information set (perhaps to a storage device, asdiscussed above), formatting one or more information sets (e.g., using aconsolidated distribution protocol, as discussed below), and discardingthe information set, among other things. Processing can additionallyinclude encoding/decoding information (perhaps to/from a remotetransmission protocol, discussed below)

At block 744, the demarcation device optionally can mediate the flow oftelecommunication information between the internal transport medium andthe external transport medium. This can be done in a variety of ways,including filtering the signals and/or frequencies sent from onetransport medium to the other so as to diminish interference on onenetwork by extraneous information, signals, and/or frequenciestransmitted (intentionally or inadvertently) by the other. Mediating theflow of information can also include filtering the information sentthrough the demarcation device, such that particular telecommunicationinformation (and/or information sets) can be treated differently fromother information (and/or information sets). In some embodiments,mediating the flow of information can be considered part of theprocessing procedure, while in other embodiments, mediating the flow ofinformation can be a separate procedure. For instance, as discussedabove, a given information set can be processed, routed or storeddifferently than other sets.

At block 728, the telecommunication information (or a particular setthereof) can be transmitted to the customer premises by the demarcationdevice. Those skilled in the art will appreciate that, that while forease of description, method 700 has been described with respect tounidirectional information flow (from a distribution point to a customerpremises), certain embodiments of the invention easily can accommodateinformation flow in the opposite direction, as well as bi-directionalinformation flow. Thus, information also could be transmitted from aCPE, through the internal transport medium, to the demarcation device.The demarcation device then could separate that telecommunicationinformation into information sets, if necessary, and take any of avariety of actions (including those discussed above) with respect toeach information set, including transmitting the information in theinformation set to the distribution point via the external medium.

Likewise, methods in accordance with certain embodiments of theinvention can support the transmission of telecommunication informationfrom a CPE, through a demarcation device, to a distribution point, and,ultimately to a telecommunication information provider. For instance, atblock 752, the demarcation device can receive telecommunicationinformation from the customer premises, and at block 756, this and otherinformation (such as, for instance, information generated by thedemarcation device itself, including configuration information, servicerequests and the like) can be transmitted to a telecommunication serviceprovider (and/or a telecommunication information provider). Merely byway of example, the telecommunication information received from thecustomer premises and/or transmitted to the telecommunication serviceprovider can include video information, IP data, telephony informationand the like, as well as information related to providingtelecommunication services, such as the video provision informationdiscussed below, information related to data transmission services,telephony signaling information, and the like.

Further, methods according to other embodiments allow for simultaneousand/or near simultaneous two-way transmission of telecommunication.Information can be transmitted to and/or received from, the customerpremises on one or more interfaces, which can be in communication withone or more internal transport media, as discussed in detail herein.

As mentioned above, demarcation devices can accommodate a variety ofdifferent types of external and internal transport media. For instance,FIG. 7 depicts a conceptual drawing of a NID 800 in accordance withparticular embodiments. NID 800 can be in communication with afiber-optic external transport medium 804. Fiber cable 804 can be any ofa variety of optical fiber media, including those discussed above. Incertain embodiments, fiber cable 804 can be single-stranded, such thattwo-way communication can be provided on the same strand (using any of avariety of methods known in the art, for example, wave-divisionmultiplexing and/or time-division multiplexing). In other embodiments,fiber cable 804 can be multi-stranded, and each strand optionally cancarry communication in a single direction, such that, for instance, twoway communication between demarcation device 800 and a distributionpoint (not shown in FIG. 7) can be accomplished with two strands offiber. Multi-stranded fiber can, of course, implement one or moremultiplexing schemes as well.

In the illustrated embodiment, NID 800 comprises a first interface 808that can be in communication with fiber cable 804. In accordance withcertain embodiments, first interface 808 can include one or moremultiplexers 812 a, 812 b. Multiplexers 812 can implement anymultiplexing scheme know to those skilled in the art, including thosemultiplexing schemes discussed above. In this way, for instance, asingle NID can support transmission of a plurality of information setsvia a single fiber cable 804, perhaps from plurality oftelecommunication information providers and/or telecommunication serviceproviders.

For instance, in some embodiments, fiber optic cable 804 can transportboth video (digital or analog) and data information sets. Merely by wayof example, in the illustrated embodiment, video information can betransmitted from a distribution point at a frequency of 1550 nm, whiledata can be transmitted at lower frequencies. Thus, multiplexer 812 acan separate the higher frequency video information from the rest of thetransmission and can route the video information via transport medium816. Conversely, NID 800 can route the lower frequency data informationvia transport medium 820, which can be in communication with multiplexer812 b. In some embodiments, multiplexer 812 b can be used to aggregateand/or separate incoming and outgoing signals, for instance those ontransport media 824 a and 824 h, respectively, according to lightfrequency. In other embodiments, a single transport medium 824 couldtransport two-way data communications; multiplexer 812 b thus can beoptional.

First interface 808 can be in communication (perhaps via transport media816, 820, 824) with a processing system 832. In some aspects, media 816,820, 824 can be optical media and processing system 832 can incorporatean electro-optical transducer. In other embodiments, however, firstinterface 808 may comprise one or more electro-optical transducers andone or more of media 816, 820, 824 can be electrical media (e.g.,twisted pair wiring). In addition to electro-optical conversion,processing system 832 can perform any of the functions of the processingsystems discussed above, and can include similar components to thosediscussed above (which are not shown here merely for the sake ofbrevity). For instance, processing system 832 can include an API 836 toallow the reception of configuration information.

In some aspects, life-line POTS service can be provided by NID 800 usingfiber cable 804. In such embodiments, NID 800 may comprise a ringinggenerator 840, which can be coupled to processing system 832 and incommunication with an analog telephone 844. In other embodiments, NID800 may also include an interface for connecting with a second externalmedium, perhaps a twisted pair local loop, which could provide analogPOTS service, and NID 800 could pass through the POTS signal from thatsecond external medium, allowing connection of an analog telephone toNID 800. NID 800 can also accommodate any of the interfaces discussedabove, including, for instance, an IEEE 1394 interface 848, a wirelessinterface (e.g. 802.11, LMDS, etc.) 852, an Ethernet interface 856, anda coaxial interface 860. NID 800 can also comprise a twisted pairinterface 868, which can, in some embodiments, allow NID 800 to providetelecommunication services via the existing telephone wiring at customerpremises. These and other interfaces can allow NID 800 to be incommunication with a variety of CPE devices as shown on FIG. 7, all ofwhich are described elsewhere and need not be described here.Optionally, any of these interfaces may incorporate a balun (e.g. 864)or line driver, as discussed herein.

In accordance with other embodiments of the invention, NIDs are providedfor communicating with coaxial external media, as for instance, are usedby cable television providers. Merely by way of example, FIG. 8illustrates one such embodiment, comprising a NID 900 that can be incommunication with a coaxial cable 904. In some embodiments, coaxialcable 904 can transport a plurality of information sets corresponding toone or more telecommunication services, including, for instance, analogvideo and/or data. In some such embodiments, NID 900 can include aninterface 906 that can be coupled to cable 904. Interface 906 can alsobe coupled to a coaxial separator/aggregator 908 which can separatesignals (perhaps according to frequency and/or time-divisionmultiplexing) and, optionally, aggregate signals as well. In someembodiments, separator/aggregator 908 Thus, for instance, analog videosignals may be transmitted from a service provider on a particularfrequency and separator/aggregator 908 can separate those signals androute them via transport medium 912. In certain embodiments,separator/aggregator 908 can also route data signals via transportmedium 916, perhaps to processing system 920.

Processing system 920 can be in communication with a customer premisesvia any of the variety of internal transport media and/or interfacesdiscussed herein, including by way of example an Ethernet interface 928,a coaxial interface 932 (perhaps including a balun 936), and/or atwisted pair interface 940, which in some embodiments can communicatewith the existing telephone wiring of the customer premises, perhapsusing a line-sharing protocol such as HPNA, HPNA+, Home Plug and/or thelike. Similar to other embodiments discussed above, NID 900 can includean optional AC or DC power source 924 and can further comprise a battery944. In many embodiments, battery 944 can provide back-up power in caseof a power failure.

As noted above, NIDs in accordance with certain embodiments can includeinterfaces for any of a variety of different external and/or internaltransport media known in the art, and in some embodiments, a single NIDcan be coupled to multiple external and/or internal transport media,allowing a wide variety of telecommunication options for a particularcustomer premises. Particular embodiments of such NIDs can in one aspectbe considered “integrated” NIDs because they are capable of supporting aplurality of different external media types. Advantageously, inaccordance with certain embodiments, telecommunication information fromany combination of these media can be managed and transmitted throughouta customer premises, all via single NID, if desired.

To illustrate these and other benefits, FIG. 9 provides a conceptualdrawing of one exemplary integrated NID 1000, which can be incommunication with a variety of transport media. For instance, NID 1000can include an interface 1004 for communicating with a digital broadcastsatellite receiver and/or transceiver (e.g., a satellite dish) 1008, aninterface 1012 for communicating with a wireless transceiver (e.g., anantenna capable of transmitting and/or receiving any of the wirelesstransmissions discussed herein, including “WiFi” signals familiar tothose skilled in the art) 1016 and an interface 1020 for communicatingwith a microwave transceiver (e.g., an LMDS and/or MMDS transceiver)1024. NID 1000 can further include an interface 1028 to be incommunication with a coaxial cable (for instance, to communicate with acable television or broadband provider). Other interfaces (for instance,any of the fiber interfaces discussed above), can be implemented aswell.

NID 1000 optionally can include an interface 1032 adapted to be coupledto a twisted pair copper transport medium, which can be, for instance, atelecommunication service provider's local loop. Interface 1032 can alsobe coupled to a discrimination device 1036, the nature and functions ofwhich are described in detail elsewhere in this disclosure.Discrimination device 1036 can be used to transmit (and/or receive)analog POTS signals to/from a traditional telephone, and (optionally)can be in communication with an aggregator 1040, which, as discussed indetail above, can consolidate a variety of analog and/or digitalinformation sets for transmission throughout the customer premises.

Discrimination device 1036, as well as interfaces 1004, 1012, 1020,1028, can be in communication with a processing system 1044, which caninclude a variety of components, including those described above, andcan perform any of the functions described above, such as routing,mediation, processing and the like, especially with respect to digitalinformation sets. In certain embodiments, processing system 1044 canserve as a signal integrator to combine all of the signals received frominterfaces 1004, 1012, 1020, 1028 and discrimination device 1036 (and,as those skilled in the art will recognize, route signals traveling inthe opposite direction to the proper external transport medium). Inother embodiments, each interface 1004, 1012, 1020, 1028 and/ordiscrimination device 1036 can be coupled to a plurality of discreteprocessing systems, which in turn can be coupled to a separate signalintegrator, such as one described in detail below. Optionally,processing system 1044 can be coupled to an aggregator 1040, which can,inter alia, combine disparate information sets, perhaps received ondifferent interfaces, for combined transmission to the customerpremises. (Alternately, processing system 1044 could be directly coupledto one or more internal interfaces for transmission of information tothe customer premises.)

As discussed above, in one aspect, aggregator 1040 can be used tocombine digital and analog information sets (for instance, a POTSinformation set from discrimination device 1036 and an IP informationset from processing system 1044), as well as filter information setstraveling in the opposite direction for routing to the correct componentand/or interface. In some aspects, aggregator 1040 can be configured toformat one or more information sets according to desired protocols,including Ethernet, HPNA, HPNA+, and/or HomePlug, before and/or aftercombining information sets for transmission, as well as to convert fromsuch formats when receiving information from the customer premises.Alternatively, processing system 1044 can be configured to perform anyand/or all of the functions of aggregator 1040.

Aggregator 1040 can be in communication one or more internal interfaces(e.g., 1048 a, 1048 b), which, as discussed above, can providefacilities for communication with any of a variety of internal transportmedia, perhaps through a balun or line driver. In the illustratedexample, interface 1048 a can be a coaxial (e.g., RG6 and/or RG59) cableinterface, and interface 1048 b can be a twisted pair (e.g., category 3,category 5, category 6, category 7, etc.) interface, perhaps forconnection to the existing telephone wiring at customer premises.Similarly, NID 1000 can be in communication with any of a variety of CPEdevices and/or home fixtures (e.g., 1052, 1056, 1060), including thosediscussed above, and can be configurable and/or addressable.

In certain embodiments, each of the external transport media can beassociated with the same telecommunication service provider and/ortelecommunication information provider. In other embodiments, one ormore of the external transport media can be associated with differenttelecommunication service providers and/or telecommunication informationproviders. Moreover, those skilled in the art will recognize that, whileFIG. 9 provides some exemplary interfaces for communication with avariety of disparate external transport media, other embodiments neednot include each of the illustrated interfaces. Indeed, certainembodiments may include a plurality of similar interfaces (for instance,multiple twisted-pair interfaces and/or fiber interfaces), and otherembodiments can include interfaces not shown on FIG. 9, such as fiberinterfaces. PCS interfaces, and/or the like.

Still other embodiments may include one or more of the interfacesillustrated on FIG. 9 and/or various combinations of those interfaces.Merely by way of example, NIDs in accordance with certain embodimentsare capable of receiving telecommunication information via one or moredigital broadcast satellite (“DBS”) receivers, and, optionally, fromother sources as well. Those skilled in the art will recognize that DBSreceivers, commonly known as “satellite dishes,” often can allowreception of video and data signals from one or more geosynchronoussatellite systems, such as those operated by EchoStar CommunicationsCorp. and Hughes Electronics Corp., among others, and can therefore beconsidered video sources, as well as sources of other telecommunicationinformation, such as data, voice, audio, and the like. Those skilled inthe art will also recognize that a satellite dish could, in someembodiments, also act as a transmitter, allowing “upstream” transmissionof telecommunication information to a telecommunication serviceprovider. Similar receivers (which also can be integrated into variousembodiments of the invention) can allow transmission and/or reception ofsignals via point-to-point microwave transmissions. Those skilled in theart will recognize as well that any other video source (such as cabletelevision transmissions, off-air antennas, and/or the like) could beincorporated into similar embodiments.

Those skilled in the art will appreciate that NIDs configured to be usedwith DBS receivers (as well as other video sources) offer many featuresand advantages. Merely by way of example, some embodiments allow for thetransmission of video signals throughout a customer premises without theneed to run dedicated coaxial cable to the satellite receiver from eachof a plurality of television locations. Instead, by using a NID,received video information can be consolidated and (if desired)converted at the NID and transmitted to any location served by anysuitable internal transport media. The transmitted video information canbe formatted in any of a variety of ways (including without limitationthose mentioned above), such as, for instance, HDTV signals, NTSCsignals and MPEG (including MPEG2 and/or MPEG4) signals, and they can betransmitted in analog or digital forms (for instance, as encapsulated inIP packets and/or HPNA frames). Further, in accordance with certainembodiments, NIDs capable of accepting video information can also acceptother types of telecommunication information (e.g., voice, data, etc.),either from the same source or from a different source.

Depending on the embodiment, certain equipment can be located proximateto each video appliance (e.g., television, computer monitor, etc.) thatis intended to receive video signals from the NID. For instance, withrespect to video appliances that do not include digital tuners, aset-top box could be used to facilitate the transmission of digitalvideo signals. (Alternatively, RF-modulated analog signals could be sentto the video appliance.) In other embodiments, a set-top box or otherdevice (including even a video appliance itself) can be used to relayconfiguration information to the NID; such configuration information caninclude, inter alia, request to change video channels and/or the like.Further, an infra-red receiver (perhaps incorporated in a set top box)could receive signals from a remote control device at the location of aparticular video appliance and relay those signals (using any internaltransport medium, including the medium carrying the video signals and/orultra high frequency (“UHF”) carrier waves, to name but two).Alternatively, a remote control device could communicate directly (viaUHF, infra-red, etc.) with NID 1000.

FIG. 10 illustrates a NID 1100 in accordance with certain embodiments ofthe invention. NID) 1100 can include an interface 1102 for communicatingwith a video source, which in the illustrated embodiment is depicted bya satellite receiver 1104, but could also be any of the video sourcesdisclosed herein. More generally, a video source can also be consideredto include any transmission received by satellite receiver 1104 and/orother video signals received by NID 1000 via an external transportmedium. In many cases, interface 1102 can comprise a plurality ofinterfaces and/or can be in communication with a variety of videosources.

For instance, those skilled in the art will recognize that, in some DBSimplementations, a customer premises with multiple video appliances willrequire a plurality of connections to receiver 1104 (e.g., a pluralityof discrete connections to a multiple low noise-block (“LNB”)converters) to provide multiple video feeds to the video appliances.Interface 1104 can accommodate as many such connections as necessary.Further. NID 1100 can include an additional interface 1106 that can becoupled to an off-air antenna (either analog or digital, including HDTV)1108, CATV connection, and/or the like. In certain embodiments,interface 1102 and 1106 can be the same interface, while in otherembodiments, additional interfaces can communicate with additional videosources.

NID 1100 optionally can include other interfaces (e.g., 1110) forcommunicating with a additional external transport media (which couldinclude, merely by way of example, a twisted-pair local loop, whichmight carry xDSL telecommunication information, a fiber link, a coaxialcable, a wireless link, and/or the like), allowing NID 1100 to providetelecommunication services via a variety of different external media. Insome aspects, interface 1110 could be considered to be in communicationwith a data source (e.g., a source and/or recipient of IP or otherdata), although, depending on the embodiment, interface 1110 could becapable of receiving any type of telecommunication information andshould not be interpreted as limited to receiving data. A data sourcecan include any external transport medium in communication with NID1100, as well as any transmission of data via such a medium.

Interface 1104 can be in communication with a processing system 1112,which can include any of the components discussed above, and, also asdiscussed above, can process received information in any of a variety ofways, including without limitation translating, decoding, encoding,converting, reformatting and/or otherwise processing informationreceived on interface 1104. In embodiments comprising more than onevideo interface (e.g. 1102, 1106), processing system 1112 can serve as asignal integrator for combining the video information received on eachinterface. (Alternatively, a separate signal integrator can be coupledto interfaces 1102, 1106 and configured to combine the signals beforetransmission to processing system 1112 and/or directly to an interfacefor communicating with the customer premises).

Other examples of processing tasks that can be performed by processingsystem 112 include protocol formatting and/or conversion. For instance,those skilled in the art will recognize that DBS systems often formatvideo information digitally for transmission (e.g., using one or more ofthe MPEG digital encoding algorithms). Often this digital videoinformation is further encoded and/or encapsulated before transmission,using any of a variety of encoding algorithms, which can, in some cases,be used to allow transmission of digital information on an analogcarrier medium. Such algorithms are referred to herein generally as“remote transmission algorithms.” One example of such an algorithm isphase shift keying, and in particular quadrature phase shift keying(“QPSK”), an algorithm well known in the art and used in thetransmission of digital information. Other examples could includefrequency shift keying (“FSK”), quaternary amplitude modulation (“QAM”),and the like.

Processing system 1112, in certain embodiments, can comprise aprocessing device (for instance, a digital signal processor) operable todecode a signal encoded by a remote transmission algorithm, producingdigitally-formatted video information, for instance, MPEG2 data and/orHDTV signals. If desired, processing system 1104 further can convert thedigitally-formatted information to produce analog video signals, forinstance NTSC and/or PAL signals, and/or can serve as an RF modulator toenable the transmission of a plurality of such signals on a singlemedium. In certain embodiments, processing system 1112 can comprise afirst processing device for decoding a remote transmission algorithm anda second processing device for translating the resulting digitalinformation to a different format (which can be either digital oranalog).

Merely by way of example, the first processing device can decode aQPSK-encoded signal received from a DBS satellite via receiver 1008,perhaps producing an MPEG2 video feed. The second processing device canconvert the MPEG2 feed into an NTSC signal for transmission to atelevision and/or re-encapsulate the MPEG2 feed (perhaps into IP packetsand/or with a consolidated distribution protocol, for example). Incertain respects, therefore, these processing devices can be consideredto comprise one or more “translation devices,” the purpose of which isto provide decoding/encoding, reformatting and/or translation of varioustelecommunication protocols and encoding schemes. Translation devices,therefore, can comprise processors (including digital signalprocessors), memory and/or buffer devices analog/digital converters(and/or digital/analog converters), digital and/or analog signalamplifiers/repeaters, RF modulators/demodulators, and the like.

As noted above, certain embodiments of NID 1100 can include a secondinterface 1110 for receiving/transmitting additional telecommunicationinformation, e.g., data, perhaps from a provider's “local loop” wiringto the customer premises. In some such embodiments, interface 1110 canbe coupled to a discrimination device 1116, the nature and functions ofwhich have been discussed elsewhere in this disclosure. In one aspect,therefore, NID 1100 can be configured to transmit/receive, for instance,a combined signal (i.e., a transmission that includes multipleinformation sets) on interface 1110, and discrimination device 1116 canbe configured to separate POTS information in the signal from non-POTS(e.g., xDSL) information (and, of course, to combine information setsfor transmission to the external transmission medium). POTS informationcan be routed to an analog interface 1120, which can, in someembodiments, be adapted to be in communication with one or more analogtelephones.

Discrimination device 1116 can also be coupled to a second processingsystem 1124, which can be used to process any non-POTS information(e.g., video, data, etc.) that travels though discrimination device1116. (As disclosed above, in other embodiments, a single processingsystem could provide the functionality of the two illustrated processingsystems 12, 1124). In certain embodiments, processing system 1124 can,inter alia, translate xDSL information to, for instance, IP data and/orformat that data into a consolidated distribution protocol fortransmission on a shared medium to the customer premises. Thus,processing system 1124 can also incorporate one or more translationdevices, which are described above. Processing systems 1112, 1124 can becoupled to a signal integrator 1128, which can combine information sets(in this case, for example, from each processing system 1112, 1124),e.g., for transmission to the customer premises or for consolidatedprocessing, and/or split a consolidated information set (e.g., aninformation set received from the customer premises) into one or moreinformation sets for transmission to the appropriate processing system,external interface, etc. In some embodiments, signal integrator 1128 canprovide conversion to/from a consolidated distribution protocol. Inother embodiments, one or more of processing systems 112, 1124 canincorporate the functionality of signal integrator 1128, and processingsystems 1112, 1124 can be coupled to each other. Signal integrator 1128can also incorporate the functionality of an aggregator, discussedelsewhere in this disclosure.

In further embodiments, discrimination device 11I 16 can also be coupledto signal integrator 1128, which can incorporate the functionality of anaggregator, described above. In this way, POTS information and non-POTSinformation (including, for instance, any combination of video, data andaudio information) can be distributed to the customer premises on acommon transport medium, perhaps formatted according to a consolidateddistribution protocol. Signal integrator 1128 can be coupled to aplurality of interfaces (e.g., 1132 a, 1132 b), which can provideconnectivity to a variety of different internal transport media, forcommunication to any of a variety of CPE and/or home fixtures(illustrated by video appliance 1136 and PC 1140). Merely by way ofexample, interface 1132 a can be a twisted pair (e.g., RJ11) interface,and interface 1132 b can be a coaxial (e.g., RG 6, RG59) interface.

Moreover, processing systems 1112, 1124 can also be coupled to dedicatedinterfaces 1144, 1148. In this way, for instance, processing system 1112can transmit/receive particular information (e.g., analog and/or digitalvideo) on one or more interfaces 1144, and processing system 1124 cantransmit a particular information set (e.g., IP data) on one or moreinterfaces 1148. In these and other ways, NID 1100 can be used (ifdesired) to transmit different information sets on different transportmedia, either in conjunction with or as an alternative to transporting aplurality of information sets on a shared internal medium, as detailedabove. Merely by way of example, interfaces 1144 a, 1144 b, 1144 c canbe coupled to video appliances 1152 a, 1152 b, 1152 c, respectively.Similarly, interfaces 1148 a, 1148 b, 1148 c can be in communicationwith computers 1156 a. 1156 b, 1156 c, respectively. In this way NID1100 (and/or, in some cases, processing systems 1112 and/or 1124) canserve as, for instance, an Ethernet hub and/or an analog/digital videodistribution hub for a customer premises wired using a star topology.

In addition, signal integrator 1128 can include one or more wirelessinterfaces (e.g., 1160), which can be used to transmit/receivetelecommunication information via any of the wireless protocolsdiscussed above. Wireless interface 1160 can be used, for instance, toreceive configuration information from one or more devices (e.g.,set-top box 1164 and/or a remote control device) inside and/or outsidethe customer premises and can be coupled to any appropriate device inNID 1100, including without limitation signal integrator 1128 (e.g., asillustrated in FIG. 10), processing system 1112 and/or processing system1124. The configuration information can include, for instance,instructions to switch video feeds (e.g., change the channel) for thevideo appliance. The configuration information can be relayed (ifnecessary) from signal integrator 1128 to processing system 1112, wherethe desired action can be taken. In this and other ways, a wide varietythe functions and/or features of NID 1100 (including those describedabove) can be configured from set-top box 1148 (and/or a remote controldevice in communication with set-top box 1148), and set-top box can beconsidered a control point. Alternatively, in certain embodiments, a PC1140 in communication with NID 1100 can provide similar configurationinformation, perhaps through a web browser or via dedicated software onthe PC communicating with NID 1100 through an API, and PC 1140 also canbe considered a control point. Although not shown on the illustratedembodiment, NID 11 can be powered via any of the mechanisms discussedelsewhere in this disclosure.

In certain embodiments, a NID can include one or more diagnosticindicators, which can provide visual information on the functions and/orperformance of the NID. Merely by way of example, NID 1100 includes asignal strength meter 1168 coupled to processing system 1112. Signalstrength meter 1168, which can be an analog gauge, LED display and/orthe like, can be used to determine the strength of one or more videosignals received by NID 1100 and can be used both for troubleshootingpurposes and configuration (e.g., tuning of receiver 1104 and/or antenna1108). It should be appreciated that, while for purposes ofillustration, meter 1168 is coupled to processing system 1112 and usedto display video signal strength information, other embodiments caninclude a wide variety of diagnostic indicators, including networkactivity indicators, power indicators (including battery backup and/orpower failure indicators), security indicators, and the like, and suchindicators can be in communication with any appropriate component of NID1100, including without limitation processing systems 1112, 1124, signalintegrator 1128, discrimination device 1116, and/or any of theinterfaces 1102, 1106, 1110, 1120, 1132, 1144, 1156, 1160. Moreover, anyof the information available via such diagnostic indicators can also bemade available digitally, such as perhaps via a configuration API, whichis discussed elsewhere in this disclosure.

Those skilled in the art will appreciate, based on the disclosureherein, that NID 1100 can provide a robust platform for the transmissionof a variety of telecommunication information, including withoutlimitation, voice, data, audio and video information. For instance, withrespect to video distribution. NID 1100 can distribute analog and/ordigital signals using a variety of interfaces and/or protocols, asdiscussed above. For instance, video information can be transmitted asIP data using, e.g., interface 1132 b, and set-top box 1164 and/or videoappliance 1136 can convert that information to analog information fordisplay to a user. In certain embodiments, only one set of videoinformation (i.e., one “channel”) will be transmitted by NID 1100, andset top box 1164 and/or video appliance 1136 can submit configurationinformation to NID 1100 specifying which channel should be transmitted.In other embodiments, NID 1100 can transmit a plurality of channels viainterface 1132 b, and set-top box 1164 and/or video appliance 1136 canfunction to select for display one or more channels from thosetransmitted.

In many embodiments NID 1100 can be configured to operate in eitherfashion, and those skilled in the art will recognize that thefunctionality of the video appliances and/or set-top boxes at thecustomer premises, as well as the wiring topology of the customerpremises, might render one mode more suitable than another. Forinstance, in a location with a plurality of video appliances and/orset-top boxes connected in bus fashion on a single medium, where eachdevice is capable of selecting the desired channel for display, it maybe more suitable to broadcast all of the available channels across themedium and allow each device to select from the broadcast. Conversely,in certain cases, for example, where each video device (i.e., set-topbox and/or video appliance) is addressable and/or resides on a differenttransport medium and/or where one or more video devices are incapable ofselecting from among a plurality of transmitted channels, it may be moreappropriate to transmit a single channel to each device and/or transportmedium, and allow the video devices (and/or separate remote controldevices) to transmit requests for the desired channels back to NID 1100.In this way, for instance, a plurality of video appliances 1152 a, 1152b, 1152 c can be attached to NID 1100 via separate transport media, andprocessing system 1112 can send a discrete signal to each videoappliance. Alternatively, a plurality of addressable video devices couldbe coupled to interfaces 1132 a, 1132 b (and/or any other interfaces),and a discrete video signal could be addressed to each attached videodevice and transmitted over a common transport media.

Those skilled in the art will appreciate, therefore, that certainembodiments, for instance those exemplified by FIG. 10, can provide acomplete solution for providing both video and data communication to acustomer premises. For instance, interface 1104, in addition toreceiving video signals, could also receive downstream datatransmissions, thus providing a downstream link between one or moretelecommunication service providers and the customer premises. Interface1110, then, could be used to provide an upstream link from the customerpremises to the telecommunication provider(s), completing the connectionbetween the service provider(s) and the customer premises.

Those skilled in the art will recognize that, in the past, suchconnections generally in the past generally have been implemented byconnecting a telephone cable to a satellite set-top box, a techniquewith inherent limitations. In contrast, embodiments of the inventionallow for any variety communication between the customer premises andthe satellite provider, for billing and other purposes known to thoseskilled in the art, without requiring the satellite set-top boxes tohave a telephone connection. For instance, by reference to FIG. 10, settop 1164 box can transmit any sort of video provisioning information toNID 1100, which can forward such information via interface 1102,interface 1110, and/or interface 1120 to the video service provider,allowing for a single connection to set top box 1164 to provide anynecessary communication, including both video feeds and videoprovisioning information, greatly simplifying the wiring considerationsat the customer premises. In this way, for example, NID 1100 could beused to allow provision of satellite video services without requiringthe service provider to run a telephone line to the television location,significantly reducing the typical installation cost for satelliteservice.

As used herein, the term “video provision information” should beinterpreted to include any information that is necessary to theprovision of video services. Such information can be transmitted toand/or from the customer premises and can include, merely by way ofexample, both billing information (e.g., customer identification,information about services utilized, amounts due, and the like) andcontent request information (e.g., channel and/or subscription requests,pay per view and/or video on demand requests, and the like).

Further, embodiments of the invention can allow a telecommunicationservice provider to sell packaged services, with video (and, perhapsdownstream data) transmitted to the home via satellite link, andupstream and/or downstream data delivered via, for instance, xDSL link.NIDs according to certain of these embodiments can also allow for thepackaging of telephone services as well, and can facilitate thedistribution of voice, data and/or video throughout a customer premises,in some instances using the existing wiring at the premises. Moreover,the modular design of many embodiments of NIDs allows for easymaintenance, configuration, and upgradeability, as discussed elsewherein this disclosure. Those skilled in the art will recognize these andother advantages of certain embodiments.

In conclusion, the present invention provides novel demarcation devices,along with systems and methods for using the same. While detaileddescriptions of one or more embodiments of the invention have been givenabove, various alternatives, modifications, and equivalents will beapparent to those skilled in the art without varying from the spirit ofthe invention. Moreover, except where clearly inappropriate or otherwiseexpressly noted, it should be assumed that the features, devices and/orcomponents of different embodiments can be substituted and/or combined.Thus, the above description should not be taken as limiting the scope ofthe invention, which is defined by the appended claims.

What is claimed is:
 1. A system for transmitting data about utilityusage, the system comprising: a power line; a utility meter incommunication with the power line and configured to provide utilityusage data; a network interface device comprising a housing defining atleast a network area and a physically separated consumer area, saidnetwork interface device being located on the exterior of a customerpremises in communication through a single medium with the utilitymeter, the network interface device comprising: a digital subscriberline (“DSL”) modem in communication with a local loop of a publicswitched telephone network; and an isolation device for providing aninterface between the power line and the DSL modem; and a DSLdistribution point in communication with the local loop; wherein thenetwork interface device is configured to: receive, at the isolationdevice, the utility usage data from the utility meter; and transmit theutility usage data to the DSL distribution point via the local loop,such the utility usage data can be transmitted from the DSL distributionpoint to a utility provider, to allow the utility provider to monitorand bill utility usage based on the utility usage data.
 2. The systemrecited by claim 1, wherein communication between the utility meter andthe network interface device is provided by the power line.
 3. Thesystem recited by claim 1, wherein the utility provider is selected fromthe group consisting of a city water department and an electricalutility.
 4. The system recited by claim 1, wherein the public network isthe Internet.
 5. The system recited by claim 4, wherein the networkinterface device is configured to transmit the utility usage data over avirtual private network.
 6. The system recited by claim 1, wherein thenetwork interface device is attached to an exterior wall of a customerpremises.
 7. The system recited by claim 1, wherein the networkinterface device is co-located with the DSL distribution point.
 8. (Thesystem recited by claim 1, wherein the DSL distribution point comprisesa digital subscriber line access multiplexer (“DSLAM”).
 9. The systemrecited by claim 1, wherein the utility meter is configured to transmitthe utility usage data using Internet Protocol (“IP”).
 10. A networkinterface device comprising a housing defining at least a network areaand a physically separated consumer area, said network interface devicebeing located on the exterior of a customer premises in communicationwith a first transport medium and a second transport medium, the networkinterface device being configured to: receive utility usage data fromone or more utility meters via the one or more first transport media;and transmit the utility usage data via the second transport medium forreception by a utility provider, to allow the utility provider tomonitor utility usage.
 11. The network interface device recited by claim10, wherein the one or more first transport media comprise a wirelesstransport medium.
 12. The network interface device recited by claim 10,wherein the one or more first transport media comprise a power line. 13.The network interface device recited by claim 10, wherein the one ormore first transport media comprise an Ethernet cable.
 14. The networkinterface device recited by claim 10, wherein the second transportmedium is a local loop of a public switched telephone network, andwherein the network interface device comprises a digital subscriber line(“DSL”) modem in communication with the local loop.
 15. The networkinterface device recited by claim 10, wherein the second transportmedium is a coaxial cable, and wherein the network interface devicecomprises a cable modem in communication with the coaxial cable.
 16. Thenetwork interface device recited by claim 10, wherein the secondtransport medium is a wireless transport medium.
 17. The networkinterface device recited by claim 10, wherein the network interfacedevice is configured to transmit the utility usage data via a publicbroadband network for reception by the utility provider.
 18. The networkinterface device recited by claim 17, wherein the network interfacedevice is configured to transmit the utility usage data over a virtualprivate network via the public broadband network.
 19. The networkinterface device recited by claim 10, wherein the one or more utilitymeters are a plurality of utility meters, and wherein the networkinterface device comprises a router for aggregating the utility usagedata from the plurality of utility meters.
 20. A method of transmittingutility usage data, the method comprising: providing communicationbetween a network interface device and one or more first transportmedia, wherein the network interface device comprises a housing definingat least a network area and a physically separated consumer area, saidnetwork interface device being located at a customer premises; providingcommunication between the network interface device and a secondtransport medium; receiving, at the network interface device, utilityusage data from one or more utility meters via the one or more firsttransport media; and transmitting the utility usage data from thenetwork interface device, via the second transport medium and forreception by a utility provider, to allow the utility provider tomonitor utility usage.